Materiały źródłowe

• #1 Uncomplicated Urinary Tract Infections – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK470195/

  Uncomplicated urinary tract infections (UTIs) are among the most common bacterial infections encountered in clinical practice. They primarily affect the lower urinary tract, including the bladder and associated structures. […] An uncomplicated urinary tract infection (UTI) is a bacterial infection of the bladder and associated structures. This condition occurs in patients without structural abnormalities of the urinary tract or comorbidities such as diabetes, an immunocompromised state, recent urologic surgery, or pregnancy. […] Pathogenic bacteria ascend from the perineum and rectum to the periurethral area, increasing the risk of UTIs in women. Additionally, women have shorter urethras than men, further enhancing their susceptibility. Blood-borne bacteria rarely cause uncomplicated UTIs.

• #2 Urinary Tract Infection (UTI): Causes, Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/9135-urinary-tract-infections

  A urinary tract infection is a very common type of infection in your urinary system. Bacteria especially E. coli are the most common cause of UTIs. […] Microorganisms usually bacteria cause urinary tract infections. They typically enter through your urethra and may infect your bladder. The infection can also travel up from your bladder through your ureters and eventually infect your kidneys. […] E. coli cause more than 90% of bladder infections. E. coli typically exist in your lower intestines (large intestine). […] Anyone can get a urinary tract infection, but you’re more likely to get a UTI if you don’t have a penis. This is because your urethra is shorter and closer to your anus, where E. coli bacteria are common.

• #3 Urinary Tract Infection (UTI) and Cystitis (Bladder Infection) in Females: Practice Essentials, Background, Pathophysiology

  https://emedicine.medscape.com/article/233101-overview

  Urinary tract infections (UTIs) occur far more commonly in women, accounting for at least 8 million visits to various types of healthcare facilities in the United States per year. Cystitis (bladder infection) represents most of these infections. 20% of women suffer from at least one UTI in their lifetime. Related terms include pyelonephritis, which refers to upper UTI, and bacteriuria or funguria, which describe findings of bacteria or yeast, respectively, in the urine. […] Escherichia coli causes the majority of uncomplicated cystitis cases. Among the pathogens responsible for the remainder are Staphylococcus saprophyticus, Proteus mirabilis, Klebsiella pneumoniae, or Enterococcus faecalis. […] E coli causes 70-95% of both upper and lower UTIs. Various organisms are responsible for the remainder of infections, including S saprophyticus, Proteus species, Klebsiella species, Enterococcus faecalis, other Enterobacteriaceae, and yeast.

• #4 Urinary Tract Infection (UTI): Causes, Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/9135-urinary-tract-infections

  A urinary tract infection is a very common type of infection in your urinary system. Bacteria especially E. coli are the most common cause of UTIs. […] Microorganisms usually bacteria cause urinary tract infections. They typically enter through your urethra and may infect your bladder. The infection can also travel up from your bladder through your ureters and eventually infect your kidneys. […] E. coli cause more than 90% of bladder infections. E. coli typically exist in your lower intestines (large intestine). […] Anyone can get a urinary tract infection, but you’re more likely to get a UTI if you don’t have a penis. This is because your urethra is shorter and closer to your anus, where E. coli bacteria are common.

• #5 Urinary tract infection – Wikipedia

  https://en.wikipedia.org/wiki/Urinary_tract_infection

  A urinary tract infection (UTI) is an infection that affects a part of the urinary tract. […] The most common cause of infection is Escherichia coli, though other bacteria or fungi may sometimes be the cause. […] Risk factors include female anatomy, sexual intercourse, diabetes, obesity, catheterisation, and family history. […] Uropathogenic Escherichia coli from the gut is the cause of 80-85% of community-acquired urinary tract infections, with Staphylococcus saprophyticus being the cause in 5-10%. […] Urinary catheterization increases the risk for urinary tract infections. […] A predisposition for bladder infections may run in families. […] Other risk factors include diabetes, being uncircumcised, and having a large prostate. […] Chronic prostatitis in the forms of chronic prostatitis/chronic pelvic pain syndrome and chronic bacterial prostatitis may cause recurrent urinary tract infections in males.

• #6 Uncomplicated Urinary Tract Infections – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK470195/

  Escherichia coli is responsible for the majority of UTIs, followed by Klebsiella. Other important organisms include Proteus, Enterobacter, and Enterococcus. […] A significant risk factor for UTIs is the use of a urinary catheter, as well as urethral manipulation. UTIs are also common after kidney transplants, with immunosuppressive drugs and vesicoureteral reflux being key contributing factors. Additional risk factors include the use of antibiotics, which can lead to the development of resistant bacterial strains, and diabetes mellitus. […] Other risk factors include: Abnormal urination (eg, incomplete emptying and neurogenic bladder), Abnormal urinary tract anatomy or function, Antibiotic use and increasing bacterial resistance, Cystocele, Dehydration, Diabetes, Diarrhea, First UTI before age 15, Frequent pelvic examinations, Incomplete bladder emptying, Immune system suppression or inadequacy, Irritable bowel syndrome, Menopause, Mother with a history of multiple UTIs, New or multiple sexual partners, Poor personal hygiene, Pregnancy, Sexual intercourse, Urinary tract calculi, Use of spermicides and diaphragms.

• #7 Urinary Tract Infection > Fact Sheets > Yale Medicine

  https://www.yalemedicine.org/conditions/urinary-tract-infection

  Bacterial infection that occurs in the urinary tract. […] A urinary tract infection occurs when bacteria causes inflammation and/or discomfort within the urinary tract. […] Most urinary tract infections are caused by E. coli, but some are caused by Staphylococcus saprophyticus or other types of bacteria. […] When urinary tract infections are triggered by bacteria entering from the bloodstream, which is rare, they’re usually caused by Salmonella or Staphylococcus aureus. […] The anatomy of the urinary tract of women makes them more likely to have a urinary tract infection than men. […] When a man has an enlarged prostate, and has trouble emptying his bladder, bacteria is more likely to build up in the urine. […] Certain conditions raise the likelihood that bacteria will have the opportunity to collect within the urinary tract and remain there long enough to cause infection, including: Pregnancy, Obesity, A personal or family history of urinary tract infections, Using spermicide and/or a diaphragm as birth control, Having frequent sexual encounters, Urinary incontinence, Sexually transmitted infections, Enlarged prostate, Having an uncircumcised penis (for boys up to 1 year of age), Kidney transplant, Catheter usage, Certain chronic health conditions, like diabetes or kidney disease, A weakened immune system.

• #8 Urinary Tract Infection (UTI) and Cystitis (Bladder Infection) in Females: Practice Essentials, Background, Pathophysiology

  https://emedicine.medscape.com/article/233101-overview

  Urinary tract infections (UTIs) occur far more commonly in women, accounting for at least 8 million visits to various types of healthcare facilities in the United States per year. Cystitis (bladder infection) represents most of these infections. 20% of women suffer from at least one UTI in their lifetime. Related terms include pyelonephritis, which refers to upper UTI, and bacteriuria or funguria, which describe findings of bacteria or yeast, respectively, in the urine. […] Escherichia coli causes the majority of uncomplicated cystitis cases. Among the pathogens responsible for the remainder are Staphylococcus saprophyticus, Proteus mirabilis, Klebsiella pneumoniae, or Enterococcus faecalis. […] E coli causes 70-95% of both upper and lower UTIs. Various organisms are responsible for the remainder of infections, including S saprophyticus, Proteus species, Klebsiella species, Enterococcus faecalis, other Enterobacteriaceae, and yeast.

• #9 Urinary Tract Infections (UTI) – The Urology Foundation

  https://www.theurologyfoundation.org/urology-health/bladder-conditions/urinary-tract-infections-uti/

  UTIs are caused primarily by bacterial infections, with E. coli being the most common culprit. […] Other bacteria, such as Staphylococcus saprophyticus, Proteus mirabilis, and Klebsiella pneumoniae, can also lead to UTIs. […] Risk factors for developing UTIs include inadequate fluid intake, sexual activity, female anatomy, bowel issues, urinary catheters, menopause, urinary retention, blockages in the urinary tract, recent urinary tract surgery, a weakened immune system, diabetes, and genetic predisposition.

• #10 Urinary Tract Infection (UTI) in Males: Practice Essentials, Background, Pathophysiology

  https://emedicine.medscape.com/article/231574-overview

  Urinary tract infections (UTIs) occur among adult males. After age 50 years, their incidence progressively increases. […] The usual route of inoculation in males is with gram-negative aerobic bacilli from the gut, with Escherichia coli being the most common offending organism. […] Chlamydia trachomatis and N gonorrhoeae are the most common pathogens in patients younger than 35 years with UTI, whereas Enterobacteriaceae and gram-positive cocci are frequent pathogens in older patients. […] Bacteria responsible for pyelonephritis and cystitis in males include E coli, Klebsiella, Enterobacter, Proteus, Pseudomonas, Serratia, Enterococcus, and Staphylococcus species. […] N gonorrhoeae is the most common cause of urethritis in males; nongonococcal causes of urethritis include C trachomatis (in up to 50% of cases), Ureaplasma urealyticum, Trichomonas vaginalis, and herpes simplex virus (HSV). […] The single most important risk factor for nosocomial bacteriuria and UTI is the presence of an indwelling urethral catheter; 80% of nosocomial UTIs are associated with the use of urethral catheters.

• #11 Urinary Tract Infection (UTI) in Males: Practice Essentials, Background, Pathophysiology

  https://emedicine.medscape.com/article/231574-overview

  Urinary tract infections (UTIs) occur among adult males. After age 50 years, their incidence progressively increases. […] The usual route of inoculation in males is with gram-negative aerobic bacilli from the gut, with Escherichia coli being the most common offending organism. […] Chlamydia trachomatis and N gonorrhoeae are the most common pathogens in patients younger than 35 years with UTI, whereas Enterobacteriaceae and gram-positive cocci are frequent pathogens in older patients. […] Bacteria responsible for pyelonephritis and cystitis in males include E coli, Klebsiella, Enterobacter, Proteus, Pseudomonas, Serratia, Enterococcus, and Staphylococcus species. […] N gonorrhoeae is the most common cause of urethritis in males; nongonococcal causes of urethritis include C trachomatis (in up to 50% of cases), Ureaplasma urealyticum, Trichomonas vaginalis, and herpes simplex virus (HSV). […] The single most important risk factor for nosocomial bacteriuria and UTI is the presence of an indwelling urethral catheter; 80% of nosocomial UTIs are associated with the use of urethral catheters.

• #12 Urinary tract infections (UTI) | Better Health Channel

  https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/urinary-tract-infections-uti

  A urinary tract infection is caused by micro-organisms, usually a bacteria called Escherichia coli (E. coli). […] UTIs are caused by micro-organisms or germs, usually bacteria. […] The most common germ causing urinary tract infections is found in your digestive system, Escherichia coli (E.coli). […] Germs such as Mycoplasma and Chlamydia can cause urethritis in both men and women. […] Some people may be at higher risk of infections due to the urinary flow being blocked or when the urine flows back up from the bladder to the kidneys. […] Women are more likely to get a UTI than men. […] In women, the urethra is short and straight, making it easier for germs to travel into the bladder. […] Some are more likely to get an infection during certain times in their menstrual cycle, such as just before a period or during pregnancy.

• #13 Urinary Tract Infection (UTI) and Cystitis (Bladder Infection) in Females: Practice Essentials, Background, Pathophysiology

  https://emedicine.medscape.com/article/233101-overview

  Most complicated UTIs are nosocomial in origin. Increasingly, UTIs in patients in healthcare institutions and in those with frequent antibiotic exposure are caused by multidrug-resistant gram-negative pathogens, such as extended-spectrum beta-lactamase (ESBL) and carbapenemase producers. […] The most important risk factor for bacteriuria is the presence of a catheter. Eighty percent of nosocomial UTIs are related to urethral catheterization, whereas 5-10% are related to genitourinary manipulation. […] Sexual intercourse contributes to increased risk, as does use of a diaphragm and/or spermicide. […] Women who are elderly, are pregnant, or have preexisting urinary tract structural abnormalities or obstruction carry a higher risk for UTI. […] Risk factors for candiduria include diabetes mellitus, indwelling urinary catheters, and antibiotic use.

• #14 The Different Causes Of Urinary Tract Infections & Why | Uqora®

  https://uqora.info/blogs/learning-center/the-different-causes-of-urinary-tract-infections-and-why

  All UTIs are caused by pathogenic bacteria in the urinary tract overgrowing and causing an infection, but how the bacteria get there can vary. […] There are many different causes of UTIs. From anecdotal, clinical, and survey data, sexual activity is likely the most common UTI trigger. […] On a high-level, anything that might introduce these bacteria to the urinary tract can cause a UTI. […] UTIs can be split into 2 types: Re-infections: UTIs caused by new bacteria that has entered the urinary tract. […] Relapse infections: UTIs caused by old bacteria hidden in the urinary tract from a previous infection. […] As mentioned above, sexual activity is the most commonly reported cause of UTIs, especially in younger women. […] During sexual activity, bacteria, most commonly e. coli, are transferred from the vagina, anus, or sexual partner to the urinary tract.

• #15 Overview of Urinary Tract Infections (UTIs) – Kidney and Urinary Tract Disorders – Merck Manual Consumer Version

  https://www.merckmanuals.com/home/kidney-and-urinary-tract-disorders/urinary-tract-infections-utis/overview-of-urinary-tract-infections-utis

  In healthy people, urine in the bladder is sterile no bacteria or other infectious organisms are present. However, any part of the urinary tract can become infected. An infection anywhere along the urinary tract is called a urinary tract infection (UTI). […] The organisms that cause infection usually enter the urinary tract by one of two routes. The most common route by far is through the lower end of the urinary tract the opening of a man’s urethra at the tip of the penis or the opening of a woman’s urethra at the vulva. The infection ascends the urethra to the bladder, and sometimes to the kidneys, or both. The other possible route is through the bloodstream, usually to the kidneys. […] Urinary tract infections (UTIs) are almost always caused by bacteria, although some viruses, fungi, and parasites can infect the urinary tract as well. More than 85% of UTIs are caused by bacteria from the intestine or vagina.

• #16 Urinary Tract Infection (UTI) and Cystitis (Bladder Infection) in Females: Practice Essentials, Background, Pathophysiology

  https://emedicine.medscape.com/article/233101-overview

  Most complicated UTIs are nosocomial in origin. Increasingly, UTIs in patients in healthcare institutions and in those with frequent antibiotic exposure are caused by multidrug-resistant gram-negative pathogens, such as extended-spectrum beta-lactamase (ESBL) and carbapenemase producers. […] The most important risk factor for bacteriuria is the presence of a catheter. Eighty percent of nosocomial UTIs are related to urethral catheterization, whereas 5-10% are related to genitourinary manipulation. […] Sexual intercourse contributes to increased risk, as does use of a diaphragm and/or spermicide. […] Women who are elderly, are pregnant, or have preexisting urinary tract structural abnormalities or obstruction carry a higher risk for UTI. […] Risk factors for candiduria include diabetes mellitus, indwelling urinary catheters, and antibiotic use.

• #17 Pathophysiology of an UTI | Urinary Tract Infection Case Study

  https://u.osu.edu/utieducation/pathophysiology-of-uti/

  The most common site of a UTI, acute cystitis, is inflammation of the bladder. The urine is contaminated by bacteria that make its way up to the bladder. Most commonly a UTI occurs through the reversed movement of bacteria or pathogens (most commonly Escherichia coli) from the gut (where it usually resides) up to the urethra then to the bladder. […] Escherichia coli has several mechanisms that makes it more virulent and resistant to the immune system. They produce toxins called cytotoxin necrotizing factor-1 and hemolysis and they are resistant to complement. Other bacteria that can cause UTIs work together to create a biofilm that helps with efficient reproduction and resists the defense mechanisms of the host as well as the antibiotic treatment that may be prescribed. […] Other pathogens that may contribute to infection include Staphylococcus saprophyticus, Pseudomonas, Proteus, and Klebsiella. Fungi such as Candida, viruses, and parasites such as Schistosoma haematobium are also common infection sources.

• #18 Overview of Urinary Tract Infections (UTIs) – Kidney and Urinary Tract Disorders – Merck Manual Consumer Version

  https://www.merckmanuals.com/home/kidney-and-urinary-tract-disorders/urinary-tract-infections-utis/overview-of-urinary-tract-infections-utis

  In healthy people, urine in the bladder is sterile no bacteria or other infectious organisms are present. However, any part of the urinary tract can become infected. An infection anywhere along the urinary tract is called a urinary tract infection (UTI). […] The organisms that cause infection usually enter the urinary tract by one of two routes. The most common route by far is through the lower end of the urinary tract the opening of a man’s urethra at the tip of the penis or the opening of a woman’s urethra at the vulva. The infection ascends the urethra to the bladder, and sometimes to the kidneys, or both. The other possible route is through the bloodstream, usually to the kidneys. […] Urinary tract infections (UTIs) are almost always caused by bacteria, although some viruses, fungi, and parasites can infect the urinary tract as well. More than 85% of UTIs are caused by bacteria from the intestine or vagina.

• #19 Urinary Tract Infection (UTI): Causes, Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/9135-urinary-tract-infections

  A urinary tract infection is a very common type of infection in your urinary system. Bacteria especially E. coli are the most common cause of UTIs. […] Microorganisms usually bacteria cause urinary tract infections. They typically enter through your urethra and may infect your bladder. The infection can also travel up from your bladder through your ureters and eventually infect your kidneys. […] E. coli cause more than 90% of bladder infections. E. coli typically exist in your lower intestines (large intestine). […] Anyone can get a urinary tract infection, but you’re more likely to get a UTI if you don’t have a penis. This is because your urethra is shorter and closer to your anus, where E. coli bacteria are common.

• #20 Urinary Tract Infection (UTI): Symptoms, Causes, Treatment

  https://www.webmd.com/women/your-guide-urinary-tract-infections

  A urinary tract infection, or UTI, is an infection in any part of your urinary system. […] UTIs are a key reason why doctors tell women to wipe from front to back after using the bathroom. The urethra the tube that takes pee from the bladder to the outside of the body is close to the anus. Bacteria from the large intestine, such as E. coli, can sometimes get out of your anus and into your urethra. From there, they can travel up to your bladder and, if the infection isn’t treated, can continue on to infect your kidneys. Most UTIs are caused by E. coli bacteria. […] Women and people with female anatomy have shorter urethras than men and people with male anatomy. That makes it easier for bacteria to get to their bladders.

• #21 Bacterial Urinary Tract Infections – Genitourinary Disorders – Merck Manual Professional Edition

  https://www.merckmanuals.com/professional/genitourinary-disorders/urinary-tract-infections-utis/bacterial-urinary-tract-infections

  Bacterial urinary tract infections (UTIs) can involve the urethra, prostate, bladder, or kidneys. […] The bacteria that most often cause cystitis and pyelonephritis are the following: Enteric, usually gram-negative aerobic bacteria (most often) […] In normal genitourinary tracts, strains of Escherichia coli with specific attachment factors for transitional epithelium of the bladder and ureters account for 75 to 95% of cases. […] In hospitalized patients, E. coli accounts for about 50% of cases. […] The rare UTIs that occur in men aged 15 to 50 years are usually in men who have unprotected anal intercourse or in those who have an uncircumcised penis, and they are generally considered uncomplicated. […] Anatomic, structural, and functional abnormalities are risk factors for UTI. […] The most common causes of bacterial UTI and UTI overall are E. coli and other gram-negative enteric bacteria.

• #22 Why Do Urinary Tract Infections (UTI) Recur?

  https://asm.org/articles/2024/may/why-urinary-tract-infections-uti-recur

  UTIs typically occur when bacteria invade the urinary tract via the urethra and travel into the bladder. In 80% of cases, uropathogenic Escherichia coli (UPEC) is the culprit behind a UTI, though other bacteria (e.g., Proteus mirabilis and Klebsiella pneumoniae) cause them too. […] Susceptibility to rUTIs and UTIs in general depends on interactions between the host and bacteria. […] On the host side, there are multiple features that contribute to bacterial growth and survival. For instance, some conditions, like diabetes, predispose to rUTIs. […] UPEC largely resides in the gut, where it can exist as a transient or commensal member of the gut microbiota. […] Researchers postulate that differences in gut microbial diversity and metabolic function in people assigned female at birth who have a history of rUTIs may alter host immune responses to bacterial bladder colonization by way of the „gut-bladder axis,” predisposing to repeat infection.

• #23 Urinary tract infection (UTI) | NHS inform

  https://www.nhsinform.scot/illnesses-and-conditions/kidneys-bladder-and-prostate/urinary-tract-infection-uti/

  Urinary tract infections (UTIs) are common infections that affect the bladder, the kidneys and the tubes connected to them. […] UTIs occur when the urinary tract becomes infected, usually by bacteria. In most cases, bacteria from the gut enter the urinary tract through the urethra. […] The following may increase your risk of getting a UTI: conditions that obstruct your urinary tract, such as kidney stones, difficulty emptying your bladder fully, using a contraceptive diaphragm or condoms coated in spermicide, diabetes, a weak immune system for example from chemotherapy or HIV, a urinary catheter (a tube in your bladder used to drain urine), an enlarged prostate gland in men. […] Women may be more likely to get UTIs because their urethra is shorter than a man’s and is closer to their anus (back passage).

• #24 Common Causes of Urinary Tract Infection – Health BeatHealth Beat

  https://flushinghospital.org/newsletter/common-causes-of-urinary-tract-infection/

  A urinary tract infection (UTI) can affect any part of your urinary system, which includes the bladder, kidneys, and urethra. […] UTIs generally develop due to the presence of bacteria, usually Escherichia coli (E. coli), in parts of your urinary system. […] Some common ways for a UTI to begin include: […] Sexual intercourse: Sexual activity is one of the most common ways for people to develop a UTI. […] Bacteria from hands: Bacteria that are present on your hands or someone elses can also enter your urethra by touching your genital area during sexual activity or while using the bathroom. […] Holding in urine: While holding in your urine does not cause a UTI on its own, it does increase your risk of developing one.

• #25 Sneaky Causes of UTIs (Urinary Tract Infections) and How to Avoid Them

  https://www.everydayhealth.com/urinary-tract-infection/7-surprising-risk-factors-urinary-tract-infections/

  Getting a urinary tract infection may seem like a matter of bad luck: Youre either susceptible to them or youre not. But thats not entirely true, because there are sneaky causes of urinary tract infections (UTIs), many of which you can sidestep or mitigate. […] Granted, if youre a woman, gender is one factor you cant control; your anatomy (namely your relatively short urethra) naturally puts you at increased risk. But there are habits and health conditions that could raise your chances of developing one of these infections and the burning, pain, and frequent urge to pee that typically come with them. […] Some medications including antihistamines, antipsychotic drugs, decongestants, and anticholinergic drugs can cause you to retain urine. […] Theres a reason your mother taught you to wipe from front to back after you pee or have a bowel movement: Going in the opposite direction can help bacteria travel from your anus to your urethra and into your bladder, Rabin says.

• #26 Urinary Tract Infection > Fact Sheets > Yale Medicine

  https://www.yalemedicine.org/conditions/urinary-tract-infection

  Bacterial infection that occurs in the urinary tract. […] A urinary tract infection occurs when bacteria causes inflammation and/or discomfort within the urinary tract. […] Most urinary tract infections are caused by E. coli, but some are caused by Staphylococcus saprophyticus or other types of bacteria. […] When urinary tract infections are triggered by bacteria entering from the bloodstream, which is rare, they’re usually caused by Salmonella or Staphylococcus aureus. […] The anatomy of the urinary tract of women makes them more likely to have a urinary tract infection than men. […] When a man has an enlarged prostate, and has trouble emptying his bladder, bacteria is more likely to build up in the urine. […] Certain conditions raise the likelihood that bacteria will have the opportunity to collect within the urinary tract and remain there long enough to cause infection, including: Pregnancy, Obesity, A personal or family history of urinary tract infections, Using spermicide and/or a diaphragm as birth control, Having frequent sexual encounters, Urinary incontinence, Sexually transmitted infections, Enlarged prostate, Having an uncircumcised penis (for boys up to 1 year of age), Kidney transplant, Catheter usage, Certain chronic health conditions, like diabetes or kidney disease, A weakened immune system.

• #27 Causes of Urinary Tract Infections | Stanford Health Care

  https://stanfordhealthcare.org/medical-conditions/womens-health/urinary-tract-infection/causes.html

  Bacteria that enter the urethra and travel up the urinary tract are the usual cause of UTIs. […] Bacteria that normally live in the large intestine and are present in feces (stool) are the most common source of infection. […] Sexual intercourse may move bacteria into the urinary tract. This happens most in women. […] Catheters are a common source of infection in people who are in hospitals or who live in long-term care facilities. Catheters are small, flexible tubes inserted into the bladder to allow urine to drain. […] Sometimes bacteria traveling through the blood or lymph system cause kidney or bladder infections. […] Women tend to get more bladder infections than men. This is probably because women have shorter urethras. It’s easier for the germs to move up to the bladder. […] You may be more likely to get an infection if you have diabetes or you are pregnant. The chance that you will get a bladder infection is higher if you have any problem that blocks the flow of urine from your bladder. Examples include having kidney stones, an enlarged prostate gland, or a structural problem in the urinary tract. […] Women who have repeated UTIs may have inherited genes that make them more likely to get these infections.

• #28 Urinary Tract Infection (UTI): Causes, Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/9135-urinary-tract-infections

  A urinary tract infection is a very common type of infection in your urinary system. Bacteria especially E. coli are the most common cause of UTIs. […] Microorganisms usually bacteria cause urinary tract infections. They typically enter through your urethra and may infect your bladder. The infection can also travel up from your bladder through your ureters and eventually infect your kidneys. […] E. coli cause more than 90% of bladder infections. E. coli typically exist in your lower intestines (large intestine). […] Anyone can get a urinary tract infection, but you’re more likely to get a UTI if you don’t have a penis. This is because your urethra is shorter and closer to your anus, where E. coli bacteria are common.

• #29 Urinary Tract Infection Basics | Urinary Tract Infection | CDC

  https://www.cdc.gov/uti/about/index.html

  UTIs are common infections that happen when bacteria, often from the skin or rectum, enter the urethra and infect the urinary tract. […] UTIs are more common in females because their urethras are shorter and closer to the rectum. This makes it easier for bacteria to enter the urinary tract. […] A previous UTI. […] Recent sexual activity. […] Changes in the bacteria that live inside the vagina or vaginal flora. For example, menopause or the use of spermicides can cause these bacterial changes. […] Structural problems in the urinary tract, such as enlarged prostate.

• #30 Urinary tract infection (UTI): symptoms, causes, treatments

  https://www.kidneyresearchuk.org/conditions-symptoms/urinary-tract-infections/

  Urinary tract infections (UTIs) can occur at any point along the tract – including the bladder (cystitis), urethra (urethritis) or kidneys (pyelonephritis) – however, most infections involve the bladder and the urethra, known as lower UTIs. […] UTIs are usually caused by bacteria from faeces in your gut (e.g. E. coli) colonising the skin around the opening of your urethra (the tube that carries urine out of your body) and then entering the urinary tract. […] Anyone can get a UTI at any age but women are more prone to getting them because they have a shorter urethra than men, making it easier for bacteria to reach the bladder or kidneys and cause an infection. […] Older people are more susceptible to UTIs due to a weaker flow of urine, meaning the bladder doesn’t fully empty. […] Your risk of getting a UTI increases if you have a condition that makes it difficult to fully empty your bladder – such as an enlarged prostate gland in men and constipation in children. […] UTI is very uncommon in healthy young and middle-aged men, and rarely develops in men under 50 years of age.

• #31 UTI FAQs: Important facts on urinary tract infections

  https://blog.walgreens.com/health/general-health/uti-faqs-important-facts-on-urinary-tract-infections.html

  Urinary tract infections (UTIs) are a common problem for women, although they can occur in men as well. A UTI is an infection anywhere along the urinary tract, which includes the urethra, bladder, ureters and kidneys. The most common type of UTIs are bladder infections, which are often easily treated. However, more complicated or severe UTIs can affect the kidneys, which can be dangerous and even life-threatening. […] UTIs occur when bacteria (from stool, the genitals, the skin or other parts of the body) enter the urinary tract. […] Oral antibiotics may cause changes to bacteria normally found in the vagina. Changes in vaginal bacteria may increase the risk of getting frequent UTIs (also known as recurrent UTIs). […] It’s very common for women to get UTIs. In fact, women get UTIs up to 30 times more often than men do.

• #32 Uncomplicated Urinary Tract Infections – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK470195/

  Escherichia coli is responsible for the majority of UTIs, followed by Klebsiella. Other important organisms include Proteus, Enterobacter, and Enterococcus. […] A significant risk factor for UTIs is the use of a urinary catheter, as well as urethral manipulation. UTIs are also common after kidney transplants, with immunosuppressive drugs and vesicoureteral reflux being key contributing factors. Additional risk factors include the use of antibiotics, which can lead to the development of resistant bacterial strains, and diabetes mellitus. […] Other risk factors include: Abnormal urination (eg, incomplete emptying and neurogenic bladder), Abnormal urinary tract anatomy or function, Antibiotic use and increasing bacterial resistance, Cystocele, Dehydration, Diabetes, Diarrhea, First UTI before age 15, Frequent pelvic examinations, Incomplete bladder emptying, Immune system suppression or inadequacy, Irritable bowel syndrome, Menopause, Mother with a history of multiple UTIs, New or multiple sexual partners, Poor personal hygiene, Pregnancy, Sexual intercourse, Urinary tract calculi, Use of spermicides and diaphragms.

• #33 Urinary Tract Infection (UTI): Symptoms, Causes, and Treatments

  https://www.healthline.com/health/urinary-tract-infection-adults

  A urinary tract infection (UTI) is an infection in the organs of your urinary tract, which includes the bladder and kidneys. Symptoms depend on the part of the urinary tract affected. […] Microbes cause UTI infections. They are organisms that are too small to be seen without a microscope. […] Most UTIs are caused by bacteria, but some are caused by fungi and, in rare cases, by viruses. UTIs are among the most common infections in humans. […] Anything that reduces your bladder emptying or irritates the urinary tract can lead to a UTI. There are also many factors that can put you at an increased risk of getting a UTI. […] These risk factors include: age (older adults are more likely to get UTIs), reduced mobility after surgery or prolonged bed rest, kidney stones, a previous UTI, urinary tract obstructions or blockages, such as enlarged prostate, kidney stones, certain forms of cancer, prolonged use of urinary catheters, which may make it easier for bacteria to get into your bladder, diabetes, pregnancy, abnormally developed urinary structures from birth, weakened immune system. […] Most UTI risk factors for men are the same as those for women. But having an enlarged prostate can also increase UTI risk. […] The most common cause is bacteria, but viruses or fungi can also cause UTIs.

• #34 Urinary tract infections (UTI) | Better Health Channel

  https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/urinary-tract-infections-uti

  During pregnancy, the drainage system from the kidney to the bladder widens so urine does not drain as quickly. […] People with diabetes are at increased risk of having UTIs as their urine may have a high glucose (sugar) content, which makes it easier for bacteria to multiply. […] Chronic conditions, some medications, and problems with incontinence put older people at an increased risk for developing UTIs. […] Babies and children are at risk of UTIs.

• #35 Causes of recurrent urinary tract infection (UTI)

  https://www.urineincontinence.com.au/urinary-tract-infection/causes-recurrent-urinary-tract-infection-uti

  Escherichia coli (E.coli) is the most common cause of UTI and is responsible for about 80 to 85% of all UTIs. […] Other bacteria involved in UTIs include Staphylococcus saprophyticus, Klebsiella, Pseudomonas and Enterococcus. UTIs are rarely due to viral, fungal and parasitic infections. […] It is thought that in women who experience recurrent bacterial UTI that the normal healthy bacteria that live in the vagina are replaced by uropathogenic bacteria from the bowel. Uropathogenic bacteria have features that make it easier for them to enter, breed and survive in the urinary tract. […] Risk factors for recurrent UTIs in younger women include: Sexual intercourse which makes it easier for bacteria to enter the urinary tract. […] Risk factors for recurrent UTIs in postmenopausal women include: Post menopausal changes in the vaginal tissues (known as atrophic vaginitis) which make vaginal and urethral tissues thinner and more fragile.

• #36 Uncomplicated Urinary Tract Infections – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK470195/

  Escherichia coli is responsible for the majority of UTIs, followed by Klebsiella. Other important organisms include Proteus, Enterobacter, and Enterococcus. […] A significant risk factor for UTIs is the use of a urinary catheter, as well as urethral manipulation. UTIs are also common after kidney transplants, with immunosuppressive drugs and vesicoureteral reflux being key contributing factors. Additional risk factors include the use of antibiotics, which can lead to the development of resistant bacterial strains, and diabetes mellitus. […] Other risk factors include: Abnormal urination (eg, incomplete emptying and neurogenic bladder), Abnormal urinary tract anatomy or function, Antibiotic use and increasing bacterial resistance, Cystocele, Dehydration, Diabetes, Diarrhea, First UTI before age 15, Frequent pelvic examinations, Incomplete bladder emptying, Immune system suppression or inadequacy, Irritable bowel syndrome, Menopause, Mother with a history of multiple UTIs, New or multiple sexual partners, Poor personal hygiene, Pregnancy, Sexual intercourse, Urinary tract calculi, Use of spermicides and diaphragms.

• #37 Urinary Tract Infection (UTI) and Cystitis (Bladder Infection) in Females: Practice Essentials, Background, Pathophysiology

  https://emedicine.medscape.com/article/233101-overview

  Most complicated UTIs are nosocomial in origin. Increasingly, UTIs in patients in healthcare institutions and in those with frequent antibiotic exposure are caused by multidrug-resistant gram-negative pathogens, such as extended-spectrum beta-lactamase (ESBL) and carbapenemase producers. […] The most important risk factor for bacteriuria is the presence of a catheter. Eighty percent of nosocomial UTIs are related to urethral catheterization, whereas 5-10% are related to genitourinary manipulation. […] Sexual intercourse contributes to increased risk, as does use of a diaphragm and/or spermicide. […] Women who are elderly, are pregnant, or have preexisting urinary tract structural abnormalities or obstruction carry a higher risk for UTI. […] Risk factors for candiduria include diabetes mellitus, indwelling urinary catheters, and antibiotic use.

• #38 Urinary Tract Infections: Causes And Treatments – National Association For Continence

  https://nafc.org/urinary-tract-infection/

  Use of contraceptive spermicide […] Immune suppression […] Pregnancy […] Diabetes […] Advanced age […] Bowel incontinence […] Kidney stones […] Surgery involving the urinary tract […] Low levels of estrogen […] Catheterization […] Naturally occurring estrogen helps prevent recurrent UTI in women. […] Catheters are associated with colonization of bacteria and increased risks of clinical infection.

• #39 Urinary Tract Infections (UTI) – Symptoms, Causes & Treatment – Wellspect

  https://www.wellspect.co.uk/bladder-and-bowel-dysfunction/bladder/common-bladder-problems/urinary-tract-infection/

  Individuals who cannot empty their bladder in a natural way are dependent on catheterisation. Intermittent catheterisation (IC) is the gold standard and should always be chosen over indwelling catheters to prevent infections. […] Everything inserted into the urethra will potentially increase the risk of UTIs, therefore this is a topic of extra concern for these individuals.

• #40 What Is a Urinary Tract Infection (UTI)? Symptoms, Causes, Diagnosis, Treatment, and Prevention

  https://www.everydayhealth.com/uti/guide/

  Women are at greater risk of urinary tract infections for anatomical reasons: Women have a shorter urethra than men and their urethra is closer to the anus, which means the bacteria that live there dont have to travel far to infect the bladder. […] When harmful bacteria like Escherichia coli (E. coli) migrate to anywhere along the genitourinary tract (such as the bladder or urethra), a UTI may develop. This bacteria can also travel from the anus to the urethra, as well as through sexually transmitted infections such as herpes, gonorrhea, chlamydia, and mycoplasma.

• #41 What you should know about urinary tract infections – UChicago Medicine

  https://www.uchicagomedicine.org/forefront/womens-health-articles/2022/november/what-you-should-know-about-urinary-tract-infections

  Urinary tract infections occur when bacteria from the vagina invade the bladder by climbing the urethra. In rare cases, the same bacteria can climb the ureter the tube that connects the bladder and kidney and cause a kidney infection. […] Urinary tract infections (UTIs) are very common in sexually active young women as well as women after menopause. […] Patients who have had two urinary tract infections in the past six months or three in the past year have „recurrent” urinary tract infections. […] Risk factors for recurrent urinary tract infections can be divided into two categories: behavioral and genetic. Behavioral risk factors include sexual activity, a new sexual partner and the use of spermicides. Genetic and health-state risk factors include having a mother with a history of UTIs, having UTIs as a child, diabetes, fecal incontinence, urinary incontinence and being post-menopausal.

• #42 The Different Causes Of Urinary Tract Infections & Why | Uqora®

  https://uqora.info/blogs/learning-center/the-different-causes-of-urinary-tract-infections-and-why

  Vaginal health is a major component to UTIs from sexual activity as imbalances in the vaginal microbiome, like bacterial vaginosis (BV), increase risk of UTI by making the urinary tract more vulnerable to bacteria. […] As women enter menopause, UTI risk goes up. […] During menopause, estrogen production declines. […] This leads to big changes in the vaginal microbiome and a declined in lactobacilli. […] Many women report getting UTIs cyclically immediately following their period. […] The pH of blood is much higher, above 7. […] Pathogenic bacteria thrive at a higher vaginal pH and are normally kept in check at a lower pH. […] Sweat and moisture allow bacteria to move around when exercising, which can transfer them to the urethra. […] The more time (the longer we hold it) that we allow bacteria to travel up the urinary tract, the higher the risk of UTI.

• #43 Urinary Tract Infection (UTI): Symptoms, Causes, Treatments | K Health

  https://khealth.com/learn/urinary-tract-infection/what-is/

  Most often these symptoms indicate a urinary tract infection (UTI). […] The three types of UTIs are: bladder infection (Also called cystitis), kidney infection (Also called pyelonephritis), urethra infection (Also called urethritis). […] In general, UTIs are caused by bacteria that enter the body through the urethra and then multiply in an area or areas of the urinary tract. […] Escherichia coli (E. coli) are overwhelmingly the most common cause of bladder and urethra infections. An estimated 80-90% of UTIs are caused by this bacteria. UTIs can also be caused by fungi, genetics, other bacteria, and infected prostate. […] What causes UTIs in women may differ from men thanks to women’s physiology. […] Chronic or recurring UTI is when someone has three or more UTIs in a year or two or more UTIs in six months. […] Many of the same risk factors for UTIs in general make people more prone to chronic UTI.

• #44 Pathophysiology of an UTI | Urinary Tract Infection Case Study

  https://u.osu.edu/utieducation/pathophysiology-of-uti/

  Urinary tract infections are caused by bacterium that invade the urinary epithelium cells causing irritation and inflammation of these cells. The infection can start in the urethra and can progress its way up to the bladder, ureters, or kidney. Infection of the urethra or bladder is known as a lower urinary tract infection while infection of the ureters, renal pelvis or kidney tissue constitutes as a upper urinary tract infection. Women tend to be more prone to urinary tract infections due to their anatomy. Their urethra is shorter than a mans urethra and thus bacteria can reach the bladder more easily. In addition, a womens urethral opening is located closer to the anus making it easier for bacteria to migrate from the anus to the uretha. […] As mentioned before, there are two main factors which contribute to the development of a UTI: 1.) The ability of the specific pathogen to produce infection 2.) The strength of an individuals defense mechanisms against the specific pathogen.

• #45 Why Do Urinary Tract Infections (UTI) Recur?

  https://asm.org/articles/2024/may/why-urinary-tract-infections-uti-recur

  UTIs typically occur when bacteria invade the urinary tract via the urethra and travel into the bladder. In 80% of cases, uropathogenic Escherichia coli (UPEC) is the culprit behind a UTI, though other bacteria (e.g., Proteus mirabilis and Klebsiella pneumoniae) cause them too. […] Susceptibility to rUTIs and UTIs in general depends on interactions between the host and bacteria. […] On the host side, there are multiple features that contribute to bacterial growth and survival. For instance, some conditions, like diabetes, predispose to rUTIs. […] UPEC largely resides in the gut, where it can exist as a transient or commensal member of the gut microbiota. […] Researchers postulate that differences in gut microbial diversity and metabolic function in people assigned female at birth who have a history of rUTIs may alter host immune responses to bacterial bladder colonization by way of the „gut-bladder axis,” predisposing to repeat infection.

• #46 Pathophysiology of an UTI | Urinary Tract Infection Case Study

  https://u.osu.edu/utieducation/pathophysiology-of-uti/

  The most common site of a UTI, acute cystitis, is inflammation of the bladder. The urine is contaminated by bacteria that make its way up to the bladder. Most commonly a UTI occurs through the reversed movement of bacteria or pathogens (most commonly Escherichia coli) from the gut (where it usually resides) up to the urethra then to the bladder. […] Escherichia coli has several mechanisms that makes it more virulent and resistant to the immune system. They produce toxins called cytotoxin necrotizing factor-1 and hemolysis and they are resistant to complement. Other bacteria that can cause UTIs work together to create a biofilm that helps with efficient reproduction and resists the defense mechanisms of the host as well as the antibiotic treatment that may be prescribed. […] Other pathogens that may contribute to infection include Staphylococcus saprophyticus, Pseudomonas, Proteus, and Klebsiella. Fungi such as Candida, viruses, and parasites such as Schistosoma haematobium are also common infection sources.

• #47 What Causes A Urinary Tract Infection? How Do You Clear UTI?

  https://liveutifree.com/what-causes-a-urinary-tract-infection/

  Recurrent UTIs are infections that can and should be treated. […] To understand why this is the case, it’s essential to understand what a UTI is, and why it can recur. […] A UTI is any infection in any part of the urinary tract. […] The shortness of the female urethra is believed to be one of the reasons females are substantially more prone to UTIs than males. […] UTIs can involve the urethra, bladder or kidneys. […] Most UTIs are caused by bacteria. But you may be interested to know that while E.coli is the most common, it is certainly not the only culprit. […] In fact, new testing methods based on molecular technology are showing that E.coli may be much less prominent in urinary tract infections than we think. […] It is generally believed non-bacterial UTIs are more likely to occur in people with compromised immune systems.

• #48

• #49 Everything you should know about urinary tract infections

  https://www.medicalnewstoday.com/articles/189953

  Urinary tract infections (UTIs) happen when microbes overcome the bodys defenses in the urinary system. They can cause discomfort and urination problems, but several treatments may resolve them. Bacteria most commonly cause UTIs. […] UTIs most commonly occur due to the following bacteria: Escherichia coli, Protus mirabilis, Enterococcus faecalis, Staphylococcus saprophyticus, Klebsiella pneumoniae. […] The following factors can increase the likelihood of developing a UTI: being sexually active, having difficulty fully emptying the bladder, having a condition that causes a blockage in the urinary tract, such as kidney stones, having diabetes, having recently used a catheter, having had a previous UTI, having vesicoureteral reflux, a condition that causes the urine to flow backward from the bladder and up toward the kidneys, having poor hygiene.

• #50 Why Do Urinary Tract Infections (UTI) Recur?

  https://asm.org/articles/2024/may/why-urinary-tract-infections-uti-recur

  UTIs typically occur when bacteria invade the urinary tract via the urethra and travel into the bladder. In 80% of cases, uropathogenic Escherichia coli (UPEC) is the culprit behind a UTI, though other bacteria (e.g., Proteus mirabilis and Klebsiella pneumoniae) cause them too. […] Susceptibility to rUTIs and UTIs in general depends on interactions between the host and bacteria. […] On the host side, there are multiple features that contribute to bacterial growth and survival. For instance, some conditions, like diabetes, predispose to rUTIs. […] UPEC largely resides in the gut, where it can exist as a transient or commensal member of the gut microbiota. […] Researchers postulate that differences in gut microbial diversity and metabolic function in people assigned female at birth who have a history of rUTIs may alter host immune responses to bacterial bladder colonization by way of the „gut-bladder axis,” predisposing to repeat infection.

• #51 Causes and Risk Factors of Urinary Tract Infections (UTIs)

  https://www.health.com/condition/uti/how-do-you-get-a-uti

  You can get a urinary tract infection (UTI) by being sexually active, holding your pee, or wiping from front to back. A UTI is an infection of the bladder, kidneys, ureters, or urethra. The main cause of UTIs is bacteria entering the urethra, or the duct where urine leaves the body. Other risk factors, such as female anatomy, health conditions like diabetes and Alzheimer’s disease, and older age, can also lead to UTIs. […] Escherichia coli (E. coli) is a bacterium that usually lives peacefully in your bowel but can lead to a UTI if it enters the urinary tract. E. coli causes many UTIs. Infections can also come from other bacteria (e.g., Streptococcus, Klebsiella, and Proteus mirabilis) and fungi. […] A UTI can occur if bacteria enter a person’s urethra. UTIs can also go beyond the bladder and affect the kidneys if untreated. Anyone can develop UTIs. Risk factors like being sexually active, holding your pee, and wiping from back to front can increase your likelihood.

• #52 Urinary Tract Infection (UTI): Causes, Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/9135-urinary-tract-infections

  A urinary tract infection is a very common type of infection in your urinary system. Bacteria especially E. coli are the most common cause of UTIs. […] Microorganisms usually bacteria cause urinary tract infections. They typically enter through your urethra and may infect your bladder. The infection can also travel up from your bladder through your ureters and eventually infect your kidneys. […] E. coli cause more than 90% of bladder infections. E. coli typically exist in your lower intestines (large intestine). […] Anyone can get a urinary tract infection, but you’re more likely to get a UTI if you don’t have a penis. This is because your urethra is shorter and closer to your anus, where E. coli bacteria are common.

• #53 Urinary Tract Infection (UTI): Symptoms, Causes, Treatment

  https://www.webmd.com/women/your-guide-urinary-tract-infections

  A urinary tract infection, or UTI, is an infection in any part of your urinary system. […] UTIs are a key reason why doctors tell women to wipe from front to back after using the bathroom. The urethra the tube that takes pee from the bladder to the outside of the body is close to the anus. Bacteria from the large intestine, such as E. coli, can sometimes get out of your anus and into your urethra. From there, they can travel up to your bladder and, if the infection isn’t treated, can continue on to infect your kidneys. Most UTIs are caused by E. coli bacteria. […] Women and people with female anatomy have shorter urethras than men and people with male anatomy. That makes it easier for bacteria to get to their bladders.

• #54 Urinary Tract Infection > Fact Sheets > Yale Medicine

  https://www.yalemedicine.org/conditions/urinary-tract-infection

  Bacterial infection that occurs in the urinary tract. […] A urinary tract infection occurs when bacteria causes inflammation and/or discomfort within the urinary tract. […] Most urinary tract infections are caused by E. coli, but some are caused by Staphylococcus saprophyticus or other types of bacteria. […] When urinary tract infections are triggered by bacteria entering from the bloodstream, which is rare, they’re usually caused by Salmonella or Staphylococcus aureus. […] The anatomy of the urinary tract of women makes them more likely to have a urinary tract infection than men. […] When a man has an enlarged prostate, and has trouble emptying his bladder, bacteria is more likely to build up in the urine. […] Certain conditions raise the likelihood that bacteria will have the opportunity to collect within the urinary tract and remain there long enough to cause infection, including: Pregnancy, Obesity, A personal or family history of urinary tract infections, Using spermicide and/or a diaphragm as birth control, Having frequent sexual encounters, Urinary incontinence, Sexually transmitted infections, Enlarged prostate, Having an uncircumcised penis (for boys up to 1 year of age), Kidney transplant, Catheter usage, Certain chronic health conditions, like diabetes or kidney disease, A weakened immune system.

• #55 Urinary tract infection (UTI) – symptoms, treatment and prevention | healthdirect

  https://www.healthdirect.gov.au/urinary-tract-infection-uti

  Urinary tract infections (UTIs) are caused by an infection with bacteria. Usually, the bacteria enters your body through your urethra. […] Things that can increase your risk of UTIs include: having diabetes, having a problem with your immune system, having kidney stones or other problems with your urinary system, having had previous UTIs, having urinary incontinence, using a urinary catheter, using nappies (in infants and young children). […] The urethra is much shorter in females than males, increasing the risk of UTIs. Other risk factors for UTIs in females include: being sexually active, being pregnant, using a diaphragm for contraception (birth control), having gone through menopause. […] In males, having an enlarged prostate can increase your risk of UTIs.

• #56 Chronic Urinary Tract Infections (UTIs): Symptoms and Treatment

  https://www.healthline.com/health/chronic-urinary-tract-infection

  Chronic urinary tract infections (UTIs) are infections of the urinary tract that either dont respond to treatment or keep recurring. […] A UTI is the result of a bacterial infection. In most cases, the bacteria enter the urinary system through the urethra and then multiply in the bladder. […] The bacteria Escherichia coli (E. coli) is a common cause of infections of the bladder or cystitis. […] This usually happens when tiny or even microscopic bits of feces get into the urinary tract. […] Chronic UTIs are most common in females. This is due to two different aspects of basic human anatomy. […] Lifestyle factors can put you at extra risk of developing a chronic UTI, such as using a diaphragm during sex. […] Menopause can cause similar problems in some people. Menopause causes hormone changes that can cause changes in your vaginal bacteria.

• #57 Why You Might Be Getting Recurring UTIs | Cool Springs OBGYN

  https://coolspringsobgyn.com/why-you-might-be-getting-recurring-utis/

  Many experience recurring UTIs throughout their lifetime. In fact, according to research, approximately 25% to 30% of women who have experienced a urinary tract infection (UTI) will experience a recurrence of the infection within six months. […] The most common cause of UTIs is bacteria, particularly Escherichia coli (E. coli), which is naturally found in the digestive tract. […] While a urinary tract infection is not considered an STI, sex can introduce bacteria into the urethra, increasing the risk of infection. […] Women are naturally at higher risk of UTIs because of their anatomy. The urethra is shorter in women, making it easier for bacteria to reach the bladder. […] Improper hygiene, such as wiping from back to front after using the bathroom, can introduce bacteria to the urethra.

• #58 Urinary tract infection (UTI): symptoms, causes, treatments

  https://www.kidneyresearchuk.org/conditions-symptoms/urinary-tract-infections/

  Urinary tract infections (UTIs) can occur at any point along the tract – including the bladder (cystitis), urethra (urethritis) or kidneys (pyelonephritis) – however, most infections involve the bladder and the urethra, known as lower UTIs. […] UTIs are usually caused by bacteria from faeces in your gut (e.g. E. coli) colonising the skin around the opening of your urethra (the tube that carries urine out of your body) and then entering the urinary tract. […] Anyone can get a UTI at any age but women are more prone to getting them because they have a shorter urethra than men, making it easier for bacteria to reach the bladder or kidneys and cause an infection. […] Older people are more susceptible to UTIs due to a weaker flow of urine, meaning the bladder doesn’t fully empty. […] Your risk of getting a UTI increases if you have a condition that makes it difficult to fully empty your bladder – such as an enlarged prostate gland in men and constipation in children. […] UTI is very uncommon in healthy young and middle-aged men, and rarely develops in men under 50 years of age.

• #59 UTI FAQs: Important facts on urinary tract infections

  https://blog.walgreens.com/health/general-health/uti-faqs-important-facts-on-urinary-tract-infections.html

  Similar to what occurs in women, a man can get a UTI when bacteria from his skin around the urethral opening or from his anus enter the urethra and travel up to the bladder. However, because the urethra is longer in men, bacteria that make it all the way to the bladder are particularly resilient, so healthcare providers often treat UTIs in men with different antibiotics than in women, and usually for longer periods of time. […] There are several factors that increase the risk of UTIs in men: An enlarged prostate, Anal intercourse, Being uncircumcised, Previous surgery or procedure involving the urethra, bladder, prostate or kidneys, Not emptying the bladder completely, Obstruction of the urinary tract (kidney stone, urethral stricture or other anatomic problem), Use of a catheter, which is a plastic tube inserted in the urethra either temporarily (such as when having a surgery) or more permanently to drain the bladder.

• #60 Common Causes Of Urinary Tract Infection (UTI) in Men: Comprehensive Guide – Urodoc

  https://urodoc.sg/common-causes-of-urinary-tract-infection-uti-in-men-comprehensive-guide/

  Urinary Tract Infections (UTIs) in men are significant but less common than in women, partly due to the male urinary tracts unique structure. However, factors such as an enlarged prostate can impede urine flow, thereby increasing the risk of infections. […] Most often caused by bacteria, especially Escherichia coli (E. coli), which normally live in the bowel, these infections can range from mild irritations to severe infections involving the kidneys. […] Urinary tract infections in men can arise from several factors that increase the likelihood of developing this condition: […] The primary cause is typically the bacteria Escherichia coli (E. coli), which originates from the bowel and can enter the urinary tract through the urethra, multiplying and causing infection. […] Common in older men, an enlarged prostate can obstruct urine flow, leading to pooling in the bladder, an ideal condition for bacterial growth.

• #61 Common Causes of Urinary Tract Infections | Men’s Liberty

  https://mensliberty.com/common-causes-of-urinary-tract-infections/

  Causes of Urinary Tract Infections: Although urinary tract infections (UTI) are far more common in women than in men, certain factors put some men more at risk of getting a UTI than others. […] A UTI occurs when bacteria is formed inside the urinary tract that cannot get expelled like it normally would upon urination. […] One of the most common causes of UTI in males is age. After age 50, the risk of getting a UTI increases each year. However, there are other factors that can cause males to develop UTIs, including: […] Problems with the urinary tract. If youve had surgery on your urinary tract in the past, or are not able to control when you urinate, your risk for UTI increases. […] Prostate issues. An infected prostate or enlarged prostate gland can be a factor in getting a UTI. […] Health conditions that weaken the immune system. If your immune system is weakened due to a long-term illness, such as diabetes, your body may not be able to fight the germs that can cause a UTI.

• #62 Common Causes Of Urinary Tract Infection (UTI) in Men: Comprehensive Guide – Urodoc

  https://urodoc.sg/common-causes-of-urinary-tract-infection-uti-in-men-comprehensive-guide/

  Men using urinary catheters, whether temporarily after surgery or due to chronic conditions, face a higher risk as catheters can introduce bacteria into the bladder and urethra. […] Inadequate genital hygiene can facilitate the spread of bacteria to the urethra, increasing the risk of infection. […] Conditions like diabetes, medical treatments such as chemotherapy, or lifestyle factors like poor diet and stress can weaken the immune system, reducing its ability to fend off infections, including UTIs. […] As men age, the prostate gland can gradually enlarge, a condition known as benign prostatic hyperplasia (BPH). This enlargement can impede the flow of urine, making it difficult to empty the bladder completely and increasing the risk of UTIs. […] Conditions like prostatitis (inflammation of the prostate) or prostate infections can also contribute to UTIs.

• #63 Urinary Tract Infection (UTI) – Symptoms & Treatment Options

  https://www.urologysanantonio.com/urinary-tract-infection/

  A urinary tract infection (UTI) occurs when bacteria get into your urinary system. Urinary tract infections usually begin in the bladder and urethra. If left untreated, they can spread to the ureters and kidneys. […] Your urinary tract can usually protect itself from infection, but certain factors increase your risk of developing a UTI. […] Being female. Women get more UTIs than men because bacteria and other infection-causing organisms (from the anus or vagina) can easily reach the urethra. Then they travel quickly to the bladder, which is only a short distance away. A man’s urethra runs to the end of his penis so bacteria have to travel further to reach the bladder. […] Menopause and post-menopause, which cause the lining of the urethra to get thinner as estrogen levels decrease. […] Diabetes and other chronic illnesses or medications that affect your immune system and make it harder for your body to fight infections. […] Conditions that make it difficult to completely empty your bladder, such as enlarged prostate and bladder and kidney stones. […] Long-term use of catheters.

• #64 Urinary tract infections (UTI) | Better Health Channel

  https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/urinary-tract-infections-uti

  During pregnancy, the drainage system from the kidney to the bladder widens so urine does not drain as quickly. […] People with diabetes are at increased risk of having UTIs as their urine may have a high glucose (sugar) content, which makes it easier for bacteria to multiply. […] Chronic conditions, some medications, and problems with incontinence put older people at an increased risk for developing UTIs. […] Babies and children are at risk of UTIs.

• #65 Urinary tract infections (UTIs): Causes, symptoms, treatment | Age UK

  https://www.ageuk.org.uk/information-advice/health-wellbeing/conditions-illnesses/urinary-tract-infections-utis/

  UTIs are caused by bacteria entering the urinary tract, most commonly bacteria from poo wiping back to front after going to the toilet, urinary catheters or having sex can increase the risk of developing a UTI. […] Older people are more susceptible to UTIs due to a weaker flow of urine, meaning the bladder doesn’t fully empty. […] In men, an enlarged prostate can also make it difficult to empty the bladder completely. This can lead to bacteria building up in the urine and bladder. […] Women are more likely to develop UTIs than men, as bacteria can reach the bladder more easily in women. […] As well as the above, there are some other things which put you at a higher risk of contracting a UTI, such as: being pregnant, going through menopause, having a weakened immune system if you have diabetes or are having chemotherapy, for example, having a condition that blocks the urinary tract, such as kidney stones, not drinking enough fluids. […] Whilst having sex can increase your risk of getting a UTI, UTIs are not contagious.

• #66 Common Causes Of Urinary Tract Infection (UTI) in Men: Comprehensive Guide – Urodoc

  https://urodoc.sg/common-causes-of-urinary-tract-infection-uti-in-men-comprehensive-guide/

  With advancing age, the immune system often weakens, making it harder to fight off infections, including those of the urinary tract. […] These preventive measures are effective in reducing the overall risk of UTIs by addressing the most common causes and contributing factors directly. […] Urinary tract infections in men, while less common than in women, require careful attention due to the serious complications they can cause. Understanding the common causes and recognising when to seek medical advice is vital to addressing symptoms early and preventing further health issues.

• #67 Urinary tract infections and dementia | Alzheimer’s Society

  https://www.alzheimers.org.uk/get-support/daily-living/urinary-tract-infections-utis-dementia

  A urinary tract infection is usually caused by bacteria entering the urinary tract via the urethra the tube that allows the passage of urine from the bladder to outside the body. […] The bacteria can then move upwards through the urinary tract, infecting the bladder (a condition known as cystitis) and sometimes the kidneys (a condition known as pyelonephritis). […] UTIs can cause sudden confusion (also known as delirium) in older people and people with dementia. […] If the person has a sudden and unexplained change in their behaviour, such as increased confusion, agitation, or withdrawal, this may be because of a UTI. […] It is also important to be aware that any infection could speed up the progression of dementia and so all infections should be identified and treated quickly. […] UTIs in someone with dementia can cause a significant and distressing change in someone’s behaviour, commonly referred to as acute confusional state or delirium.

• #68 Urinary tract infections and dementia | Alzheimer’s Society

  https://www.alzheimers.org.uk/get-support/daily-living/urinary-tract-infections-utis-dementia

  A urinary tract infection is usually caused by bacteria entering the urinary tract via the urethra the tube that allows the passage of urine from the bladder to outside the body. […] The bacteria can then move upwards through the urinary tract, infecting the bladder (a condition known as cystitis) and sometimes the kidneys (a condition known as pyelonephritis). […] UTIs can cause sudden confusion (also known as delirium) in older people and people with dementia. […] If the person has a sudden and unexplained change in their behaviour, such as increased confusion, agitation, or withdrawal, this may be because of a UTI. […] It is also important to be aware that any infection could speed up the progression of dementia and so all infections should be identified and treated quickly. […] UTIs in someone with dementia can cause a significant and distressing change in someone’s behaviour, commonly referred to as acute confusional state or delirium.

• #69 Why You Might Be Getting Recurring UTIs | Cool Springs OBGYN

  https://coolspringsobgyn.com/why-you-might-be-getting-recurring-utis/

  Many experience recurring UTIs throughout their lifetime. In fact, according to research, approximately 25% to 30% of women who have experienced a urinary tract infection (UTI) will experience a recurrence of the infection within six months. […] The most common cause of UTIs is bacteria, particularly Escherichia coli (E. coli), which is naturally found in the digestive tract. […] While a urinary tract infection is not considered an STI, sex can introduce bacteria into the urethra, increasing the risk of infection. […] Women are naturally at higher risk of UTIs because of their anatomy. The urethra is shorter in women, making it easier for bacteria to reach the bladder. […] Improper hygiene, such as wiping from back to front after using the bathroom, can introduce bacteria to the urethra.

• #70 Chronic Urinary Tract Infection (UTI) Causes, Symptoms, and Treatment

  https://www.upmc.com/services/womens-health/conditions/chronic-urinary-tract-infection

  A urinary tract infection (UTI) is a bacterial infection in your urinary tract. […] Doctors define a urinary tract infection (UTI) as a bacterial infection of any part of the urinary tract. A chronic or recurrent UTI is when you’ve had two UTIs in the past six months or more than three UTIs in the previous year. […] The most common cause of UTIs is bacteria, especially E. coli bacteria from the intestines. E coli accounts for about 75% of recurrent UTIs. […] Youre more likely to have recurrent UTIs if you: Are older. The risk increases in middle age and after menopause. […] Recurrent UTIs are also common in pregnant people. Hormonal changes in pregnancy make it easier for bacteria to spread in the urinary system. […] A relapsing UTI persists or recurs within two weeks due to a resistance to antibiotics. […] Recurrent UTIs, on the other hand, are new infections of the urinary tract by bacteria different than those that caused the previous infection.

• #71 Chronic Urinary Tract Infection (UTI) Causes, Symptoms, and Treatment

  https://www.upmc.com/services/womens-health/conditions/chronic-urinary-tract-infection

  A urinary tract infection (UTI) is a bacterial infection in your urinary tract. […] Doctors define a urinary tract infection (UTI) as a bacterial infection of any part of the urinary tract. A chronic or recurrent UTI is when you’ve had two UTIs in the past six months or more than three UTIs in the previous year. […] The most common cause of UTIs is bacteria, especially E. coli bacteria from the intestines. E coli accounts for about 75% of recurrent UTIs. […] Youre more likely to have recurrent UTIs if you: Are older. The risk increases in middle age and after menopause. […] Recurrent UTIs are also common in pregnant people. Hormonal changes in pregnancy make it easier for bacteria to spread in the urinary system. […] A relapsing UTI persists or recurs within two weeks due to a resistance to antibiotics. […] Recurrent UTIs, on the other hand, are new infections of the urinary tract by bacteria different than those that caused the previous infection.

• #72 What Causes A Urinary Tract Infection? How Do You Clear UTI?

  https://liveutifree.com/what-causes-a-urinary-tract-infection/

  Most UTIs are caused by the harder-to-treat kinds of bacteria. […] There is no single antibiotic that cures all types of UTIs. […] If you’re one of the small number whose UTIs have a non-bacterial cause, antibiotics certainly won’t help. […] The right treatment for your UTI can only be accurately selected if you know which pathogen caused your UTI in the first place. […] There is no single treatment that will kill all pathogens that can cause a urinary tract infection.

• #73 Why Do Urinary Tract Infections (UTI) Recur?

  https://asm.org/articles/2024/may/why-urinary-tract-infections-uti-recur

  During infection, UPEC adheres to and is then internalized into urothelial cells (the cells lining the bladder wall). […] Although UPEC is the principal pathogen responsible for UTIs, other UTI-associated bacteria have their own qualities and quirks that facilitate survival and persistence. […] The goal is to get a UTI under control before it reaches this point. […] There is a push for alternative options for managing UTIs. […] A recent study identified 2 plant-derived compounds that disrupt host cell machinery needed for UPEC to enter bladder cells. […] The more scientists learn about the mechanisms underlying rUTIs, the more options will become available for making the infections go away for good.

• #74 Chronic Urinary Tract Infections | Baylor Medicine

  https://www.bcm.edu/healthcare/specialties/obstetrics-and-gynecology/urogynecology-and-reconstructive-pelvic-surgery/chronic-urinary-tract-infections

  A chronic urinary tract infection is a repeated or prolonged bacterial infection of the bladder or urethra, the tube that carries urine from the bladder out of the body. […] Possible causes include: Bacteria from the rectum and vagina, Bacteria entering the urethra during sexual intercourse, Urinary tract problems, Problems emptying the bladder completely due to blockage, muscle or nerve problems, Kidney or bladder stones, Altered estrogen levels during menopause, Genetic predisposition.

• #75 Common Causes of UTIs | Urinary Tract Infections – Texas Health Care Obstetrics & Gynecology

  https://thcobgyn.com/common-causes-of-utis-urinary-tract-infections/

  The urinary system extracts waste products, disinfects the body and keeps its fluid levels balanced. A urinary tract infection (UTI) is the second most common type of human infection. It occurs when bacteria enter the urinary tract. The intestinal bacteria, Escherichia coli is the cause of almost 90% of urinary tract infections. […] Women are particularly susceptible to UTIs. 1 in 5 women will develop a UTI during her lifetime. The main reason for this is because womens urethras are shorter than mens and therefore more prone to contact with bacteria from the anus and vagina. […] Some women may suffer from chronic UTIs. Contributing factors may include bladder or kidney stones, bacteria entering the urethra during sexual intercourse, and estrogen fluctuations during menopause. Chronic UTIs may also be caused by an abnormal urinary tract or a genetic disposition to UTIs.

• #76 5 tips to prevent a urinary tract infection – Mayo Clinic Health System

  https://www.mayoclinichealthsystem.org/hometown-health/speaking-of-health/5-tips-to-prevent-a-urinary-tract-infection

  A urinary tract infection, also called a UTI, is an infection that occurs in the urinary system. This could include the urethra, bladder, ureters and kidneys. Most infections involve the bladder and urethra, known as the lower urinary tract. […] Women are at greater risk for a UTI because the urethra is shorter than in men, so it’s easier for bacteria to travel to the bladder. UTIs also are more common in postmenopausal women because low estrogen levels change vaginal and urethral tissue to increase the risk of infection. […] Risk factors for recurrent UTIs include: Frequent sexual intercourse, which increases the likelihood of bacteria entering the urethra and bladder. Using spermicide with or without a diaphragm, as this can harm protective bacteria in the urinary tract that defend against infection. Urinary retention or incomplete bladder emptying caused by medications; narrowing of the urethra; prolapse of the bladder, uterus or vagina; neurological conditions; or sometimes unknown reasons. Vaginal atrophy, which is a postmenopausal condition caused by decreased estrogen levels. Genetics, especially the inherited genes that regulate the body’s immune response to infections.

• #77 Why You Might Be Getting Recurring UTIs | Cool Springs OBGYN

  https://coolspringsobgyn.com/why-you-might-be-getting-recurring-utis/

  Not drinking enough fluids reduces urination frequency, which prevents bacteria from being flushed out of the urinary tract. […] During and after menopause, a decline in estrogen leads to thinning of the vaginal and urethral tissues. […] Urinary catheters provide a direct pathway for bacteria to enter the bladder, leading to catheter-associated UTIs (CAUTIs). […] Diabetes weakens the immune system and increases glucose levels in the urine, creating an environment where bacteria thrive. […] It isn’t fully known why some people are more apt to get UTIs than others. […] Some doctors believe certain genetic subtypes are more prone to UTIs than others. […] Another reason you could get recurring UTIs is an underlying medical issue. […] Knowing the primary ways bacteria can enter your urinary tract is also vital in helping prevent painful UTIs from happening and recurring. […] Chronic conditions and a suppressed immune system can increase the risk of recurring UTIs. […] If chronic UTIs aren’t treated properly, they can lead to kidney infections, which could cause lasting damage.

• #78 Urinary Tract Infection: Causes, Symptoms & Treatment | Live Science

  https://www.livescience.com/44121-urinary-tract-infection-symptoms-treatment.html

  A urinary tract infection, or UTI, is a bacterial infection of any part of the urinary tract, which includes the bladder, kidneys, ureters (tubes that connect the kidneys to the bladder) and the urethra (the tube that allows the bladder to be emptied). Infections of the bladder or the urethra are the most common. […] Most often, a UTI occurs because bacteria enter the urethra and travel up to the bladder, where they multiply. […] Bladder infections are typically caused by Escherichia coli (E. coli) bacteria, which are common bacteria in the human gut, according to the Mayo Clinic. Infections of the urethra can be caused by E. coli, or by sexually transmitted infections, such as herpes or chlamydia. […] Bacteria in the bladder can also move up to the kidneys and cause a kidney infection (known as pyelonephritis), which can cause permanent kidney damage. An untreated UTI in the bladder can lead to such an infection.

• #79 Urinary Tract Infection (UTI): Causes, Symptoms, Treatment

  https://www.verywellhealth.com/urinary-tract-infection-uti-7372902

  Bacteria cause most UTIs and are treatable with antibiotics. […] Treating a UTI right away is a critical way to prevent complications. […] The most common complication of a UTI is a kidney infection (pyelonephritis). […] It is common for some people to experience chronic or recurrent UTIs. […] If you experience two UTIs in six months or three in a year, you could be diagnosed with recurrent UTIs. […] UTIs are common and easily treated. When treated right away, they do not cause further damage to the urinary tract. […] When left untreated, UTIs can lead to serious complications like kidney or blood infections.

• #80 Urinary Tract Infections (UTIs) (for Parents) | Nemours KidsHealth

  https://kidshealth.org/en/parents/urinary.html

  Urinary tract infections (UTIs) are common in kids. They happen when bacteria (germs) get into the bladder or kidneys. […] UTIs are much more common in girls because a girl’s urethra is shorter and closer to the anus (where poop comes out). Uncircumcised boys younger than 1 year also have a slightly higher risk for a UTI. […] Other risk factors for a UTI include: a problem in the urinary tract (for example, a malformed kidney or a blockage somewhere along the tract of normal urine flow), an abnormal backward flow (reflux) of urine from the bladder up the ureters and toward the kidneys. This is known as vesicoureteral reflux (VUR), and many kids with a UTI are found to have it, poor toilet and hygiene habits, family history of UTIs. […] UTIs are easy to treat, but it’s important to catch them early. Undiagnosed or untreated UTIs can lead to kidney damage.

• #81 Pathophysiology of an UTI | Urinary Tract Infection Case Study

  https://u.osu.edu/utieducation/pathophysiology-of-uti/

  Pyelonephritis is an infection of one or both upper urinary tracts. Acute pyelonephritis is usually associated with the microorganisms E. coli, Proteus, and Pseudomonas. […] Chronic pyelonephritis is recurrent infection of the kidney which leads to scarring. Various causes are idiopathic, chronic UTIs, renal stones, or recurrent episodes of acute pyelonephritis. Chronic UTIs prevent the elimination of bacteria and triggers the inflammatory process which leads to destruction or atrophy of the tubules, significant scarring and impaired urine concentrating ability. These all ultimately lead to chronic kidney failure.

• #82 Why You Might Be Getting Recurring UTIs | Cool Springs OBGYN

  https://coolspringsobgyn.com/why-you-might-be-getting-recurring-utis/

  Not drinking enough fluids reduces urination frequency, which prevents bacteria from being flushed out of the urinary tract. […] During and after menopause, a decline in estrogen leads to thinning of the vaginal and urethral tissues. […] Urinary catheters provide a direct pathway for bacteria to enter the bladder, leading to catheter-associated UTIs (CAUTIs). […] Diabetes weakens the immune system and increases glucose levels in the urine, creating an environment where bacteria thrive. […] It isn’t fully known why some people are more apt to get UTIs than others. […] Some doctors believe certain genetic subtypes are more prone to UTIs than others. […] Another reason you could get recurring UTIs is an underlying medical issue. […] Knowing the primary ways bacteria can enter your urinary tract is also vital in helping prevent painful UTIs from happening and recurring. […] Chronic conditions and a suppressed immune system can increase the risk of recurring UTIs. […] If chronic UTIs aren’t treated properly, they can lead to kidney infections, which could cause lasting damage.

• #83 Urinary Tract Infection (UTI): Causes, Symptoms, Treatment

  https://www.verywellhealth.com/urinary-tract-infection-uti-7372902

  Bacteria cause most UTIs and are treatable with antibiotics. […] Treating a UTI right away is a critical way to prevent complications. […] The most common complication of a UTI is a kidney infection (pyelonephritis). […] It is common for some people to experience chronic or recurrent UTIs. […] If you experience two UTIs in six months or three in a year, you could be diagnosed with recurrent UTIs. […] UTIs are common and easily treated. When treated right away, they do not cause further damage to the urinary tract. […] When left untreated, UTIs can lead to serious complications like kidney or blood infections.

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