Materiały źródłowe

• #1 Acne Vulgaris – StatPearls – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK459173/

  Acne vulgaris is a chronic inflammatory disorder affecting the pilosebaceous unit, typically following a prolonged course. It is commonly triggered during adolescence by Cutibacterium acnes, a bacterial species, under the influence of normal circulating levels of dehydroepiandrosterone. This common skin disorder that can present with both inflammatory and non-inflammatory lesions. […] Acne vulgaris is a common cutaneous inflammatory disorder of the pilosebaceous unit, which runs a chronic course. The condition commonly manifests with papules, pustules, or nodules primarily on the face, although it can also affect the upper arms, trunk, and back. […] The pathogenesis of acne vulgaris involves the interaction of multiple factors that ultimately lead to the formation of its primary lesion, which is known as „comedo”.

• #1

  https://www.nhs.uk/conditions/acne/diagnosis/

  A GP can diagnose acne by looking at your skin. This involves examining your face, chest or back for the different types of spot, such as blackheads or sore, red nodules. […] PCOS can be diagnosed using a combination of ultrasound scans and blood tests.

• #1 Pathogenesis, clinical manifestations, and diagnosis of acne vulgaris – UpToDate

  https://www.uptodate.com/contents/pathogenesis-clinical-manifestations-and-diagnosis-of-acne-vulgaris

  Acne vulgaris is a common cutaneous disorder characterized by chronic or recurrent development of papules, pustules, or nodules on the face, neck, trunk, or proximal upper extremities. […] The pathogenesis, clinical manifestations, and diagnosis of acne vulgaris will be reviewed here. […] The severity of skin involvement varies from minimal involvement to disfiguring and highly inflammatory presentations. […] Hyperpigmentation, scarring, and negative psychosocial effects are common complications. […] Diagnosis and evaluation include history, physical examination, and additional tests.

• #1 Acne (Acne Vulgaris) > Fact Sheets > Yale Medicine

  https://www.yalemedicine.org/conditions/acne

  Acne, one of the most common skin disorders, peaks in adolescence and early adulthood, affecting around 85% of people between the ages of 12 and 24. […] Acne is a category of skin complaints that includes pimples, blackheads, and whiteheads, which can appear on the face, back, and chest. […] Doctors classify acne based on a number of factors, including the type of lesions (comedones, papules, pustules, etc.) and severity. […] Acne develops when hair follicles get clogged with oils, dead skin cells, and bacteria. […] Doctors will usually begin by asking about your medical history. […] A physical exam is essential for diagnosis of acne. […] Though a diagnosis of acne can usually be made on the basis of a medical history and physical exam, blood tests are sometimes helpful to measure the levels of hormones (such as testosterone) associated with acne. […] Acne is usually treated with a combination of lifestyle modifications and medications. […] Nearly everyone has experienced acne at some point in their lives, and for most, the outlook is excellent.

• #1 Truncal Acne: A Practical Guide to Diagnosis and Management

  https://www.skintherapyletter.com/family-practice/truncal-diagnosis-management/

  Acne vulgaris (AV) is one of the most common skin diseases. Characterized by lesions resulting from inflammation of pilosebaceous units, predominant sites of involvement include the face, chest, and back – areas with the highest density of these units. Truncal acne refers to AV affecting the chest and/or back, a common presentation in acne patients. This article offers guidance in clinical differentiation of truncal acne from other acneiform diseases and provides management recommendations. […] Acne lesions begin as microcomedones that become clinically apparent as open (blackheads) or closed (whiteheads) comedones. Erythematous papules and pustules develop when comedones become increasingly inflamed. If it becomes severe, deep pustules and nodules and/or cysts may develop. During the physical exam, individual assessment of the face, chest and back should be performed to evaluate severity and extent of disease. Lesion types, size, distribution, and the presence of scars or dyspigmentation are important details to capture.

• #1 Dermatology Exam: Acne vs. Rosacea | Stanford Medicine 25 | Stanford Medicine

  https://stanfordmedicine25.stanford.edu/the25/acne.html

  Acne vulgaris is what most people think of when they hear acne. However another type of acne, called acne rosacea (usually referred to as just rosacea) needs a different type of treatment then acne vulgaris. It is important to be able to differentiate the two diagnoses. […] Acne vulgaris (commonly referred to as acne) is a common skin disease in which hair follicles become clogged with dead skin and oils resulting in inflammation. Acne has a varied etiology which includes genetics, hormonal function, bacterial growth, and other causes. Clinically, acne can be identified by open or closed comedones, and/or by erythematous papules and pustules on the face, as well as erythema on the surrounding skin. […] Acne rosacea (commonly referred to as rosacea) is a common skin disease which is characterized by redness, papules, pustules, and swelling. Commonly mistaken for acne vulgaris in its early stages, acne rosacea is a relapsing condition, which can be exacerbated by sun exposure, heat, alcohol, strong emotions, caffeine, and spicy foods. Clinically, rosacea is largely identified by the intense reddening of the skin (the erythema is caused by dilation of the superficial vasculature of the face). Likewise, rosacea does not typically present with comedones. […] Unlike acne vulgaris, rosacea is typically localized commonly over the central face (i.e. medial cheek, nose, forehead, and chin). […] Learn the difference between acne vulgaris and acne rosacea.

• #1 Diagnosis and Treatment of Acne | AAFP

  https://www.aafp.org/pubs/afp/issues/2004/0501/p2123.html

  Acne is a disease of pilosebaceous units in the skin. It is thought to be caused by the interplay of four factors. Excessive sebum production secondary to sebaceous gland hyperplasia is the first abnormality to occur. The diagnosis of acne is based on the history and physical examination. Lesions most commonly develop in areas with the greatest concentration of sebaceous glands, which include the face, neck, chest, upper arms, and back. Acne vulgaris may be defined as any disorder of the skin whose initial pathology is the microscopic microcomedo. The microcomedo may evolve into visible open comedones (blackheads) or closed comedones (whiteheads). Subsequently, inflammatory papules, pustules, and nodules may develop. Nodulocystic acne consists of pustular lesions larger than 0.5 cm. The presence of excoriations, postinflammatory hyperpigmentation, and scars should be noted.

• #1 How is Acne Diagnosed?

  https://www.rupahealth.com/post/how-is-acne-diagnosed

  Acne evaluation begins with understanding your medical history. […] A thorough medical history helps dermatologists assess factors such as: Onset of Acne: understanding when the condition began is crucial for tracking its progression and identifying patterns, like adolescent vs adult-onset acne. […] Previous Treatments: knowing what treatments you’ve already tried, both successful and unsuccessful, helps guide current treatment decisions. […] Underlying Health Conditions: conditions like polycystic ovary syndrome (PCOS) can influence acne, making it important to assess hormonal imbalances and metabolic health. […] Family History and Hormonal Changes: dermatologists often look for a genetic predisposition to acne as well as hormonal fluctuations or patterns (e.g., during puberty, menstruation, or pregnancy) that might aggravate symptoms.

• #1 Diagnosis and Treatment of Acne | AAFP

  https://www.aafp.org/pubs/afp/issues/2012/1015/p734.html

  Acne is diagnosed by the identification of lesions. The spectrum of acne lesions ranges from noninflammatory open or closed comedones (blackheads and whiteheads) to inflammatory lesions, which may be papules, pustules, or nodules. […] Grading acne based on the type of lesions and their severity can help in deciding which therapies are warranted; however, there is no consensus on the best grading system. […] Treatment goals in patients with acne include the prevention of scars, the reduction of psychological morbidity, and the resolution of noninflammatory and inflammatory lesions. Therapy should be continued for a minimum of eight weeks before a treatment response can be accurately assessed. Referral to a dermatologist should be considered when treatment goals are not met or when there is significant scarring.

• #1 Acne Vulgaris: Features, Types, and Treatments — DermNet

  https://dermnetnz.org/topics/acne-vulgaris

  Acne vulgaris is the common form of acne, characterised by a mixed eruption of inflammatory and non-inflammatory skin lesions (see all the acne types). […] Acne may be classified as mild, moderate or severe. Comedones and inflammatory lesions are usually considered separately. […] Some dermatologists assess the severity of a patient’s acne more precisely by using a grading scale. The inflammatory lesions are compared with a set of standard photographs to determine the grade, which may be 1 (very mild) to 12 (exceptionally severe) for example. […] Treatment for acne depends on the patient’s age and sex, the extent and the severity of the acne, how long it has been present, and response to previous treatments.

• #1 Acne – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/acne/symptoms-causes/syc-20368047

  Acne typically appears on your face, forehead, chest, upper back and shoulders because these areas of skin have the most oil (sebaceous) glands. […] Pimples are raised red spots with a white center that develop when blocked hair follicles become inflamed or infected with bacteria. […] Certain things may trigger or worsen acne: Hormonal changes, Certain medications, Diet, Stress. […] If both of your parents had acne, you’re likely to develop it too.

• #1 Acne Vulgaris – Dermatologic Disorders – Merck Manual Professional Edition

  https://www.merckmanuals.com/professional/dermatologic-disorders/acne-and-related-disorders/acne-vulgaris

  Acne vulgaris is the formation of comedones, papules, pustules, nodules, and/or cysts as a result of obstruction and inflammation of pilosebaceous units (hair follicles and their accompanying sebaceous gland). […] Diagnosis is by examination. […] Diagnosis of acne vulgaris is by examination. […] Differential diagnosis includes rosacea (in which no comedones are seen), corticosteroid-induced acne (which lacks comedones and in which pustules are usually in the same stage of development), perioral dermatitis (usually with a more perioral and periorbital distribution), and acneiform drug eruptions. […] Acne severity is graded mild, moderate, or severe based on the number and type of lesions.

• #1 Differential diagnosis and variants of acne vulgaris – Women’s Healthcare

  https://www.npwomenshealthcare.com/differential-diagnosis-and-variants-of-acne-vulgaris/

  Differential diagnosis and variants of acne vulgaris […] Acne vulgaris is one of the most common dermatologic diagnoses, but several diseases manifest with similar symptoms often mimicking traditional acne. […] The goal of this article is to help nurse practitioners providing womens healthcare in primary care settings to navigate the subtle differences in acneiform eruptions to avoid misdiagnosis of acne vulgaris and recognize other potential causes. […] Diagnosis is made based on clinical examination, and treatment is individualized based on severity. […] Knowing and understanding the potential variants and differential diagnoses associated with acne vulgaris can help guide practitioners in clinical decision making that facilitates patients receiving treatments that are the most effective.

• #1 Acne or Rosacea? Diagnosis Is Key | Rosacea.org

  https://www.rosacea.org/blog/2013/january/acne-or-rosacea-diagnosis-is-key

  Dr. Baldwin noted that while acne and rosacea are clinically and biochemically different, the distinction between the two conditions is often based on a compilation of several broad generalities rather than clear-cut diagnostic criteria. […] For example, rosacea is a chronic disorder that occurs primarily in the central portion of the face and usually includes redness, flushing and blushing, and bumps (papules) and pimples (pustules). […] Rosacea can also involve the eyes and even a bulbous nose. […] Acne is seen most commonly in teens, while rosacea occurs most often much later. […] Also, unlike in patients with rosacea, blackheads are generally present, and bumps and pimples on the trunk and arms are common, she said. […] Though both conditions may involve bumps and pimples, the causes and biochemical processes are different for each.

• #1 Diagnosis and Treatment of Acne | AAFP

  https://www.aafp.org/pubs/afp/issues/2004/0501/p2123.html

  Acne may be triggered or worsened by external factors such as mechanical obstruction (i.e., helmets, shirt collars), occupational exposures, or medications. Endocrine causes of acne include Cushings disease or syndrome, polycystic ovary syndrome, and congenital adrenal hyperplasia. Clinical clues to possible hyperandrogenism in women include dysmenorrhea, virilization (i.e., hirsutism, clitoromegaly, temporal balding), and severe acne.

• #1 Clinical Manifestation and Differential Diagnosis of Acne

  https://www.dermatologytimes.com/view/clinical-manifestation-and-differential-diagnosis-of-acne

  Dermatology experts comment on the clinical manifestation of acne and the importance of differential diagnosis. […] We have comedones, which can be whiteheads or blackheads. That depicts whether theyre open or closed. The open comedones are oxidized, which turns them black, and thats why we call them blackheads. We then have papules and pustules. If theres pus in them, then we call them pustules. Some people refer to papules as pimples. When the inflammation and swelling are deep in the skin, then a nodule or cyst can develop. The nodule is solid, and the cyst is filled with sebum or pus, but both are tender. […] There are different forms of acne. Acne mechanica is from friction or rubbing, which we see in athletes. […] When we talk about acne, were most commonly classifying it as mild, moderate, or severe when we are talking to our patients and in general conversation.

• #1 Acne Vulgaris Workup: Laboratory Studies, Histologic Findings

  https://emedicine.medscape.com/article/1069804-workup

  The diagnosis of acne vulgaris is clinical. Consider polycystic ovarian syndrome (PCOS) in female patients with oligomenorrhea, hirsutism, and/or acanthosis nigricans in addition acne: These patients should be evaluated with total and free testosterone, dehydroepiandrosterone sulfate (DHEAS), androstenedione, luteinizing hormone, and follicle-stimulating hormone values, as well as a lipid panel, glucose value, and insulin level. […] Skin lesion cultures to rule out gram-negative folliculitis are warranted if the patient does not respond to long-term antibiotic treatment or improvement with antibiotics is not maintained. […] The microcomedo is characterized by a dilated follicle with a plug of dense keratin. With progression of the disease, the follicular opening becomes dilated, and an open comedo results. The follicular wall thins, and it may rupture. Inflammation and bacteria may be evident, with or without follicular rupture. Follicular rupture is accompanied by dense inflammatory infiltrate throughout the dermis. Later, extensive fibrosis and scarring may develop.

• #1 Fungal Acne: Is It Acne? Causes, Symptoms and Treatments

  https://www.webmd.com/skin-problems-and-treatments/acne/what-is-fungal_acne

  Fungal acne is a skin condition called pityrosporum folliculitis. […] Fungal Acne Diagnosis […] To diagnose fungal acne, your doctor may ask about your symptoms and look at your skin. They may use Wood’s lamp, a small black light, while they look at your skin. Some fungi, such as Malassezia yeast, will glow under a black light. Malassezia usually glows a yellow-green color. […] To confirm your symptoms are caused by fungal acne, your doctor may also perform a couple of tests. For instance, they may gather some skin cells by gently scraping your skin where you have a breakout. They will look at these skin cells under the microscope for signs of Malassezia yeast. […] Remove a small section of skin for a biopsy. The lab will then stain your skin samples with dyes that react with yeast so they can see them under the microscope.

• #1 How is Acne Diagnosed?

  https://www.rupahealth.com/post/how-is-acne-diagnosed

  By differentiating these conditions from acne, dermatologists can provide more targeted, effective treatments, improving outcomes and preventing overtreatment. […] A patients skin type significantly influences both diagnosis and treatment of acne and acne-mimicking conditions. […] Blood tests are typically recommended when hormonal imbalances are suspected, particularly in cases of adult acne that don’t respond to conventional treatments. […] Dermatologists assess hormonal factors in women by reviewing menstrual history, checking for signs of hyperandrogenism (e.g., hirsutism, oily skin), and considering related symptoms like weight gain or irregular periods. […] The following diagnostic techniques may be utilized by practitioners: Skin biopsy is typically not required for the diagnosis of acne vulgaris, as the condition is usually diagnosed based on physical examination. […] If breakouts persist, lead to scarring, or don’t improve with over-the-counter treatments, it’s time to see a dermatologist. […] Following proper diagnosis, treatment may include topical or oral medications and lifestyle changes.

• #1 Acne – Wikipedia

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

  Acne vulgaris is diagnosed based on a medical professional’s clinical judgment. The evaluation of a person with suspected acne should include taking a detailed medical history about a family history of acne, a review of medications taken, signs or symptoms of excessive production of androgen hormones, cortisol, and growth hormone. Comedones (blackheads and whiteheads) must be present to diagnose acne. In their absence, an appearance similar to that of acne would suggest a different skin disorder. […] Many features may indicate that a person’s acne vulgaris is sensitive to hormonal influences. Historical and physical clues that may suggest hormone-sensitive acne include onset between ages 20 and 30; worsening the week before a woman’s period; acne lesions predominantly over the jawline and chin; and inflammatory/nodular acne lesions.

• #1

  https://dermnetnz.org/topics/acne

  What tests are necessary for acne? […] In most cases, tests are unnecessary. If features are atypical consider: Skin swabs for microscopy and culture […] Hormonal tests in females.

• #1 Understanding Your Acne Test Results: Hormonal and Blood Tests Explained

  https://www.rupahealth.com/post/understanding-your-acne-test-results-hormonal-and-blood-tests-explained

  Acne is usually diagnosed through a skin exam, but hormonal and blood tests can reveal underlying causes, especially in complex cases. […] These tests are recommended for adult acne, severe or cystic acne, or when standard treatments fail. […] Understanding these test results helps clinicians tailor treatment plans to address root causes, leading to more effective, personalized care. […] To accurately identify the underlying causes of persistent or severe acne, clinicians may order several hormonal and blood tests. […] These tests can reveal imbalances that contribute to acne development and guide more targeted treatments. […] Hormonal tests measuring androgens, insulin, and cortisol levels can reveal imbalances contributing to acne, helping clinicians identify underlying causes like PCOS or insulin resistance.

• #1 Acne – Wikipedia

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

  Several scales exist to grade the severity of acne vulgaris, but disagreement persists about the ideal one for diagnostic use. Cook’s acne grading scale uses photographs to grade severity from 0 to 8, with higher numbers representing more severe acne. This scale was the first to use a standardized photographic protocol to assess acne severity; since its creation in 1979, the scale has undergone several revisions. […] The presence of comedones helps health professionals differentiate acne from skin disorders that are similar in appearance.

• #1

  https://www.nhs.uk/conditions/acne/

  Acne is a common skin condition that affects most people at some point. […] Although acne cannot be cured, it can be controlled with treatment. […] If your acne is severe or appears on your chest and back, it may need to be treated with antibiotics or stronger creams that are only available on prescription. […] You should see a GP if you have moderate or severe acne or you develop nodules or cysts, as they need to be treated properly to avoid scarring. […] Treatments can take several months to work, so do not expect results overnight. Once they do start to work, the results are usually good.

• #1 Acne: Types, Causes, Treatment & Prevention

  https://my.clevelandclinic.org/health/diseases/12233-acne

  Acne is a common skin condition where the pores of your skin clog. The medical term for acne is acne vulgaris. Acne usually affects everyone at some point in their lifetime. A healthcare provider can diagnose acne during a skin exam. Your healthcare provider won’t need to run any diagnostic tests for acne, but they may offer tests to diagnose any underlying conditions if you have sudden, severe acne outbreaks, especially if you’re an adult. A general healthcare provider or a dermatologist can diagnose and treat acne. Dermatologists rank acne by severity. There are several ways to treat acne. Each type of treatment varies based on your age, the type of acne you have and the severity. If topical or oral medications don’t work well for your acne, or if you have acne scars, a healthcare provider may recommend different types of therapies to clear your skin. Visit a healthcare provider as soon as you notice pimples so you can start treatment immediately before scarring occurs.

• #1 Acne: Diagnosis and treatment

  https://www.aad.org/public/diseases/acne/derm-treat/treat

  Effective treatment begins with an accurate diagnosis. If you have acne, your dermatologist can diagnose you by looking at the breakouts. […] Whether you have acne or another condition, your dermatologist can give you an accurate diagnosis and create a treatment plan tailored to your needs. […] The goals of acne treatment are to: Clear existing acne. Stop new breakouts. Prevent acne scars. […] There is no one-size-fits-all acne treatment. The best acne treatment for one patient is not necessarily the best treatment for another patient. […] With a dermatologist’s help, virtually everyone can see clearer skin. […] Sometimes what looks like acne isn’t acne: What looks like acne may be another condition. […] Your dermatologist knows how to safely combine acne treatments to clear acne and keep it from coming back.

• #1 Acne Diagnosis and Treatment | Dermatologists located in Coraopolis, PA | Dermatology Associates of Western Pennsylvania

  https://www.wpaderm.com/post/acne-diagnosis-and-treatment

  Do you continue to break out despite having tried several acne treatments? Dermatologists customize acne treatment plans for their patients. The acne treatment plan thats right for you depends on many considerations, including: What type of acne (i.e., blackheads, pimples, etc.) you have […] Treatment may consist of: Prescription medication that you apply to your skin + taking an antibiotic […] Hormonal therapy (women only) […] Isotretinoin (medication approved to treat severe acne).

• #1 Acne Vulgaris: A Guide to Diagnosis, Treatment, and Management | VisualDx

  https://www.visualdx.com/blog/acne-vulgaris-a-guide-to-diagnosis-treatment-and-management/

  A 21-year-old female presents to you because she is upset with her facial appearance. Since high school, she has suffered from acne but has not had medical insurance to get it taken care of. […] Acne is defined as an inflammatory and obstructive disease affecting the pilosebaceous glands most commonly of the face. […] High clinical suspicion as well as documented improvement with acne treatment help confirm the diagnosis. […] Lack of improvement with treatment should warrant re-evaluation of the diagnosis. […] Before initiating treatment, we need to make sure the acne is not caused by a medication or supplement that the patient is taking, known as drug-induced acne. […] When initiating treatment, its important to be able to characterize the severity of the disease. […] By grading the disease severity, you can then determine how aggressive you want to be with treatment.

• #1 How is Acne Diagnosed?

  https://www.rupahealth.com/post/how-is-acne-diagnosed

  Acne is one of the most common skin conditions, affecting millions of people worldwide, from teenagers to adults. […] Receiving the proper treatment begins with an accurate diagnosis: understanding the type and underlying causes of a persons acne leads to more personalized care. […] Diagnosing acne is not just about visible lesions; a dermatologist can perform a comprehensive medical evaluation to identify clues to underlying hormonal imbalances, genetic or lifestyle factors. […] Effective treatment starts with the right diagnosis: different types of acne (blackheads, whiteheads, cysts, hormonal) have different causes and may require distinct treatments. Misdiagnosis can worsen the condition. […] Additionally, conditions like rosacea or folliculitis can mimic acne, making correct identification essential for effective therapy. Early diagnosis helps prevent scarring and long-term damage, leading to clearer skin and better overall health.

• #1 Pimples? Free 3-Min Quiz Identifies Causes | Ubie

  https://ubiehealth.com/symptoms/acne-vulgaris

  Acne vulgaris is a skin condition that occurs when hair follicles are blocked with dead skin cells, bacteria, and oil (sebum). It is more commonly known as acne — the presence of blackheads, whiteheads, and other types of pimples on the skin. […] Also known as pimples, acne results from a blocked swollen pore. Causes include changes in hormone levels (e.g. puberty), medications, and direct pressure on the skin. […] Your doctor may ask these questions to check for this symptom: Do you have acne? How long have you had pimples, acne, or zits? How has the pimple, acne, or zit(s) changed since it first started? Have you had pimples, acne, or zits before? […] Our symptom checker AI is continuously refined with input from experienced physicians, empowering them to make more accurate diagnoses.

• #2 Acne Vulgaris: Practice Essentials, Background, Pathophysiology

  https://emedicine.medscape.com/article/1069804-overview

  Acne vulgaris is a common chronic skin disease involving blockage and/or inflammation of pilosebaceous units (hair follicles and their accompanying sebaceous gland). Acne can present as noninflammatory lesions, inflammatory lesions, or a mixture of both, affecting mostly the face but also the back and chest. […] Acne vulgaris is characterized by noninflammatory, open or closed comedones and by inflammatory papules, pustules, and nodules. Acne vulgaris typically affects the areas of skin with the densest population of sebaceous follicles (eg, face, upper chest, back). Local symptoms of acne vulgaris may include pain, tenderness, or erythema. […] Acne vulgaris is a clinical diagnosis. However, laboratory testing may be indicated in the following situations: Polycystic ovarian syndrome (PCOS): Consider PCOS in female patients with oligomenorrhea, hirsutism and/or acanthosis nigricans in addition to acne.

• #2 Diagnosing Acne | NYU Langone Health

  https://nyulangone.org/conditions/acne/diagnosis

  Acne breakouts are caused by clogged or infected pores, which are the small openings in your skin where hair emerges. […] A proper diagnosis of the type or types of blemishes affecting you is the first step toward clear skin. […] Dermatologists at NYU Langone have seen every kind of acne and can identify which is causing your symptoms just by looking at your skin. […] During your first appointment with one of our dermatologists, he or she conducts a thorough examination of your skin to determine what kind of blemishes you have and how much of your skin is affected. […] Your dermatologist may ask a variety of questions about your symptoms, including when and how frequently you have breakouts, what kind of blemishes you have most often, if acne runs in your family, and what treatments you may have already tried. […] If acne appears on a younger child’s skin, a dermatologist may recommend a blood test to determine if there is a hormonal imbalance responsible.

• #2 Diagnosis and Treatment of Acne | AAFP

  https://www.aafp.org/pubs/afp/issues/2004/0501/p2123.html

  Acne is a disease of pilosebaceous units in the skin. It is thought to be caused by the interplay of four factors. Excessive sebum production secondary to sebaceous gland hyperplasia is the first abnormality to occur. The diagnosis of acne is based on the history and physical examination. Lesions most commonly develop in areas with the greatest concentration of sebaceous glands, which include the face, neck, chest, upper arms, and back. Acne vulgaris may be defined as any disorder of the skin whose initial pathology is the microscopic microcomedo. The microcomedo may evolve into visible open comedones (blackheads) or closed comedones (whiteheads). Subsequently, inflammatory papules, pustules, and nodules may develop. Nodulocystic acne consists of pustular lesions larger than 0.5 cm. The presence of excoriations, postinflammatory hyperpigmentation, and scars should be noted.

• #2 Get Acne Treatment Online – TeleMed2U

  https://www.telemed2u.com/dermatology/acne

  Your doctor or dermatologist (a medical doctor who treats skin problems) will do a physical exam of your skin, and ask about your stress level and family history of acne. […] In older people, a sudden and severe acne outbreak can be a symptom of another disease requiring medical attention.

• #2 Acne Vulgaris: Features, Types, and Treatments — DermNet

  https://dermnetnz.org/topics/acne-vulgaris

  Acne vulgaris is the common form of acne, characterised by a mixed eruption of inflammatory and non-inflammatory skin lesions (see all the acne types). […] Acne may be classified as mild, moderate or severe. Comedones and inflammatory lesions are usually considered separately. […] Some dermatologists assess the severity of a patient’s acne more precisely by using a grading scale. The inflammatory lesions are compared with a set of standard photographs to determine the grade, which may be 1 (very mild) to 12 (exceptionally severe) for example. […] Treatment for acne depends on the patient’s age and sex, the extent and the severity of the acne, how long it has been present, and response to previous treatments.

• #2 Acne Vulgaris: Practice Essentials, Background, Pathophysiology

  https://emedicine.medscape.com/article/1069804-overview

  Examination in patients with acne vulgaris includes the following features: Comedonal acne: Presence of open and closed comedones but usually no inflammatory papules or nodules. […] Treatment of acne vulgaris should be directed toward the known pathogenic factors, including follicular hyperproliferation, excess sebum, C acnes (formerly P acnes), and inflammation. The most appropriate treatment is based on the grade and severity of the acne. […] Acne vulgaris is the most common skin disease in the United States; it affects an estimated 80% of Americans at some time during their lives. […] The pathogenesis of acne vulgaris is multifactorial. The key factor is genetics. […] Acne develops as a result of an interplay of the following four factors: Release of inflammatory mediators into the skin, Follicular hyperkeratinization with subsequent plugging of the follicle, Cutibacterium acnes (formerly Propionibacterium acnes) follicular colonization, Excess sebum production. […] Acne may cause long-lasting and detrimental psychosocial and physical effects. It is associated with depression and anxiety, regardless of disease severity, although the psychological effects usually improve with treatment.

• #2 Acne – Wikipedia

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

  Several scales exist to grade the severity of acne vulgaris, but disagreement persists about the ideal one for diagnostic use. Cook’s acne grading scale uses photographs to grade severity from 0 to 8, with higher numbers representing more severe acne. This scale was the first to use a standardized photographic protocol to assess acne severity; since its creation in 1979, the scale has undergone several revisions. […] The presence of comedones helps health professionals differentiate acne from skin disorders that are similar in appearance.

• #2 Clinical Manifestation and Differential Diagnosis of Acne

  https://www.dermatologytimes.com/view/clinical-manifestation-and-differential-diagnosis-of-acne

  Dermatology experts comment on the clinical manifestation of acne and the importance of differential diagnosis. […] We have comedones, which can be whiteheads or blackheads. That depicts whether theyre open or closed. The open comedones are oxidized, which turns them black, and thats why we call them blackheads. We then have papules and pustules. If theres pus in them, then we call them pustules. Some people refer to papules as pimples. When the inflammation and swelling are deep in the skin, then a nodule or cyst can develop. The nodule is solid, and the cyst is filled with sebum or pus, but both are tender. […] There are different forms of acne. Acne mechanica is from friction or rubbing, which we see in athletes. […] When we talk about acne, were most commonly classifying it as mild, moderate, or severe when we are talking to our patients and in general conversation.

• #2 Acne vulgaris differential diagnosis – wikidoc

  https://www.wikidoc.org/index.php/Acne_vulgaris_differential_diagnosis

  Acne vulgaris must be differentiated from other diseases that cause scaly red skin, comedones, papules, nodules, and possibly scarring, including chickenpox, herpes zoster, erythema multiforme, among others. […] Different rash-like conditions can be confused with acne and are thus included in its differential diagnosis. […] The typical acne lesions are comedones and inflammatory papules, pustules, and nodules. Some of the large nodules were previously called „cysts”. […] Acne is typical of teenagers, usually appears on the face and upper neck, but the chest, back and shoulders may have acne as well.

• #2 Dermatology Exam: Acne vs. Rosacea | Stanford Medicine 25 | Stanford Medicine

  https://stanfordmedicine25.stanford.edu/the25/acne.html

  Acne vulgaris is what most people think of when they hear acne. However another type of acne, called acne rosacea (usually referred to as just rosacea) needs a different type of treatment then acne vulgaris. It is important to be able to differentiate the two diagnoses. […] Acne vulgaris (commonly referred to as acne) is a common skin disease in which hair follicles become clogged with dead skin and oils resulting in inflammation. Acne has a varied etiology which includes genetics, hormonal function, bacterial growth, and other causes. Clinically, acne can be identified by open or closed comedones, and/or by erythematous papules and pustules on the face, as well as erythema on the surrounding skin. […] Acne rosacea (commonly referred to as rosacea) is a common skin disease which is characterized by redness, papules, pustules, and swelling. Commonly mistaken for acne vulgaris in its early stages, acne rosacea is a relapsing condition, which can be exacerbated by sun exposure, heat, alcohol, strong emotions, caffeine, and spicy foods. Clinically, rosacea is largely identified by the intense reddening of the skin (the erythema is caused by dilation of the superficial vasculature of the face). Likewise, rosacea does not typically present with comedones. […] Unlike acne vulgaris, rosacea is typically localized commonly over the central face (i.e. medial cheek, nose, forehead, and chin). […] Learn the difference between acne vulgaris and acne rosacea.

• #2 How is Acne Diagnosed?

  https://www.rupahealth.com/post/how-is-acne-diagnosed

  By differentiating these conditions from acne, dermatologists can provide more targeted, effective treatments, improving outcomes and preventing overtreatment. […] A patients skin type significantly influences both diagnosis and treatment of acne and acne-mimicking conditions. […] Blood tests are typically recommended when hormonal imbalances are suspected, particularly in cases of adult acne that don’t respond to conventional treatments. […] Dermatologists assess hormonal factors in women by reviewing menstrual history, checking for signs of hyperandrogenism (e.g., hirsutism, oily skin), and considering related symptoms like weight gain or irregular periods. […] The following diagnostic techniques may be utilized by practitioners: Skin biopsy is typically not required for the diagnosis of acne vulgaris, as the condition is usually diagnosed based on physical examination. […] If breakouts persist, lead to scarring, or don’t improve with over-the-counter treatments, it’s time to see a dermatologist. […] Following proper diagnosis, treatment may include topical or oral medications and lifestyle changes.

• #2 Acne – Skin Disorders – Merck Manual Consumer Version

  https://www.merckmanuals.com/home/skin-disorders/acne-and-related-disorders/acne

  To diagnose acne, doctors examine the skin. […] Doctors base the diagnosis of acne on an examination of the skin. Doctors look for certain symptoms, such as blackheads or whiteheads, to determine that the person has acne and not another skin disorder, such as rosacea. […] After the diagnosis is confirmed, doctors grade the severity of the acne as mild, moderate, or severe based on the number and type of lesions.

• #2 Acne Vulgaris Workup: Laboratory Studies, Histologic Findings

  https://emedicine.medscape.com/article/1069804-workup

  The diagnosis of acne vulgaris is clinical. Consider polycystic ovarian syndrome (PCOS) in female patients with oligomenorrhea, hirsutism, and/or acanthosis nigricans in addition acne: These patients should be evaluated with total and free testosterone, dehydroepiandrosterone sulfate (DHEAS), androstenedione, luteinizing hormone, and follicle-stimulating hormone values, as well as a lipid panel, glucose value, and insulin level. […] Skin lesion cultures to rule out gram-negative folliculitis are warranted if the patient does not respond to long-term antibiotic treatment or improvement with antibiotics is not maintained. […] The microcomedo is characterized by a dilated follicle with a plug of dense keratin. With progression of the disease, the follicular opening becomes dilated, and an open comedo results. The follicular wall thins, and it may rupture. Inflammation and bacteria may be evident, with or without follicular rupture. Follicular rupture is accompanied by dense inflammatory infiltrate throughout the dermis. Later, extensive fibrosis and scarring may develop.

• #2 Understanding Your Acne Test Results: Hormonal and Blood Tests Explained

  https://www.rupahealth.com/post/understanding-your-acne-test-results-hormonal-and-blood-tests-explained

  Acne is usually diagnosed through a skin exam, but hormonal and blood tests can reveal underlying causes, especially in complex cases. […] These tests are recommended for adult acne, severe or cystic acne, or when standard treatments fail. […] Understanding these test results helps clinicians tailor treatment plans to address root causes, leading to more effective, personalized care. […] To accurately identify the underlying causes of persistent or severe acne, clinicians may order several hormonal and blood tests. […] These tests can reveal imbalances that contribute to acne development and guide more targeted treatments. […] Hormonal tests measuring androgens, insulin, and cortisol levels can reveal imbalances contributing to acne, helping clinicians identify underlying causes like PCOS or insulin resistance.

• #2 Acne Tests & Diagnosis: When To See A Dermatologist

  https://www.webmd.com/skin-problems-and-treatments/acne/teen-acne-when-see-doctor

  1. The acne is severe. A dermatologist can help get this under control. […] 2. Over-the-counter treatments dont clear it up. Try a non-prescription treatment such as a topical retinoid gel or those containing benzoyl peroxide, salicylic acid, glycolic acid, or lactic acid for a couple of months. Adapalene (Differin) is another treatment that may work. If these treatments don’t help, its time to see an expert. […] 3. The acne appeared after you started taking a specific medication. Some drugs for anxiety, depression, and other conditions can cause acne or similar symptoms. Your doctor might be able to change your prescription. […] 4. You notice acne scars. Your dermatologist will get your skin condition under control and then treat the scars. […] 5. It affects your self-esteem. Having clearer skin could make you feel more confident and less self-conscious.

• #2 Seeing a dermatologist for acne: When and how they help

  https://www.medicalnewstoday.com/articles/when-to-see-a-dermatologist-for-acne

  If acne does not respond to over-the-counter (OTC) treatment, a person may wish to receive treatment from a dermatologist. The treatment can depend on factors including the acne’s type, severity, and location. […] A person should see a dermatologist to treat their acne if the condition does not respond to OTC treatment and negatively affects their life. […] A dermatologist may be able to treat stubborn, severe, or persistent acne with medication and other therapies. They may also be able to help treat and prevent scarring and pigmentation. […] Acne can affect a person’s mental health and may lead to conditions such as anxiety and depression. Anyone who feels that their acne is affecting their quality of life should seek treatment, if possible.

• #2 ACNE: DIAGNOSIS AND TREATMENT | Dermatologist in Grosse Pointe Woods, New Baltimore, & Hartland, MI | Eastside Dermatology

  https://www.ederm.com/acne-diagnosis-and-treatment

  Effective treatment begins with an accurate diagnosis. If you have acne, your dermatologist can diagnose you by looking at the breakouts. […] Whether you have acne or another condition, your dermatologist can give you an accurate diagnosis and create a treatment plan tailored to your needs. […] The goals of acne treatment are to: Clear existing acne, Stop new breakouts, Prevent acne scars. […] While the goals are the same for each patient, there is no one-size-fits-all acne treatment. […] Your dermatologist knows how to safely combine acne treatments to clear acne and keep it from coming back.

• #2 Acne Diagnosis and Treatment | Dermatologists located in Coraopolis, PA | Dermatology Associates of Western Pennsylvania

  https://www.wpaderm.com/post/acne-diagnosis-and-treatment

  Do you continue to break out despite having tried several acne treatments? Dermatologists customize acne treatment plans for their patients. The acne treatment plan thats right for you depends on many considerations, including: What type of acne (i.e., blackheads, pimples, etc.) you have […] Treatment may consist of: Prescription medication that you apply to your skin + taking an antibiotic […] Hormonal therapy (women only) […] Isotretinoin (medication approved to treat severe acne).

• #2

  https://www.nhs.uk/conditions/acne/

  Acne is a common skin condition that affects most people at some point. […] Although acne cannot be cured, it can be controlled with treatment. […] If your acne is severe or appears on your chest and back, it may need to be treated with antibiotics or stronger creams that are only available on prescription. […] You should see a GP if you have moderate or severe acne or you develop nodules or cysts, as they need to be treated properly to avoid scarring. […] Treatments can take several months to work, so do not expect results overnight. Once they do start to work, the results are usually good.

• #2 Acne | Dermatologist In Winston-Salem, NC | Westgate Dermatology and Laser Center, P.A.

  https://www.westgatedermatology.com/acne/

  To diagnose acne, a dermatologist will first examine your skin to make sure you have acne. Other skin conditions can look like acne. If you have acne, the dermatologist will: […] Today, there are many effective acne treatments. This does not mean that every acne treatment works for everyone who has acne. But it does mean that virtually every case of acne can be controlled. […] If you have a lot of acne, cysts, or nodules, a medicine that you can buy without a prescription may not work. If you want to see clearer skin, you should see a dermatologist. […] Waiting for acne to clear on its own can be frustrating. Without treatment, acne can cause permanent scars, low self-esteem, depression, and anxiety. […] Today, virtually every case of acne can be successfully treated. Dermatologists can help treat existing acne, prevent new breakouts and reduce your chance of developing scars.

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