Materiały źródłowe

• #1 Hypothyroidism | Endocrine Conditions

  https://www.yourhormones.info/endocrine-conditions/hypothyroidism/

  Hypothyroidism is a condition that develops when the thyroid gland is unable to produce enough thyroid hormones. […] Hypothyroidism happens when the thyroid gland, a small, butterfly-shaped gland in your neck, doesn’t make enough thyroid hormones. These hormones help control your body’s energy and growth. […] People with hypothyroidism may feel tired, gain weight, feel cold, have dry skin or experience hair loss. Some may have more symptoms than others, depending on how serious the condition is. The symptoms of hypothyroidism are very non-specific, and some surveys suggest that about 1/3 of people with normal thyroid hormone levels have symptoms that are associated with hypothyroidism. […] Hypothyroidism is common, especially in middle-aged women. Around 3.5% of people in the UK have hypothyroidism, and 3-10% have subclinical hypothyroidism.

• #1 Hypothyroidism (underactive thyroid) – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/hypothyroidism/symptoms-causes/syc-20350284

  Hypothyroidism happens when the thyroid gland doesn’t make enough thyroid hormone. This condition also is called underactive thyroid. Hypothyroidism may not cause noticeable symptoms in its early stages. Over time, hypothyroidism that isn’t treated can lead to other health problems, such as high cholesterol and heart problems. […] The symptoms of hypothyroidism depend on the severity of the condition. Problems tend to develop slowly, often over several years. […] At first, you may barely notice the symptoms of hypothyroidism, such as fatigue and weight gain. Or you may think they are just part of getting older. But as your metabolism continues to slow, you may develop more-obvious problems. […] Hypothyroidism symptoms may include: Tiredness. More sensitivity to cold. Constipation. Dry skin. Weight gain. Puffy face. Hoarse voice. Coarse hair and skin. Muscle weakness. Muscle aches, tenderness and stiffness. Menstrual cycles that are heavier than usual or irregular. Thinning hair. Slowed heart rate, also called bradycardia. Depression. Memory problems.

• #1 Hypothyroidism in Children | Children’s Hospital of Philadelphia

  https://www.chop.edu/conditions-diseases/hypothyroidism

  Hypothyroidism is a common endocrine disorder in which your childs thyroid gland does not produce enough thyroid hormone. A child with an underactive thyroid may experience fatigue, weight gain, constipation, decreased growth, and a host of other issues. […] Symptoms of hypothyroidism are usually subtle and gradual, and may resemble those of other conditions or medical problems. Many symptoms are non-specific and may be ignored as normal parts of our everyday lives. Because of this, the condition may go undetected for years. […] Symptoms may include: Fatigue and/or exercise intolerance, Slower reaction time (an important issue for drivers), Weight gain, Constipation, Sparse, coarse and dry hair, Coarse, dry and thickened skin, Slow pulse, Cold intolerance, Muscle cramps, Sides of eyebrows thin or fall out, Dull facial expression, Hoarse voice, Slow speech, Droopy eyelids, Puffy and swollen face, Enlarged thyroid, producing a goiter-like growth on the neck, Increased menstrual flow and cramping in girls and young women.

• #1 Patient education: Hypothyroidism (underactive thyroid) (Beyond the Basics) – UpToDate

  https://www.uptodate.com/contents/hypothyroidism-underactive-thyroid-beyond-the-basics/print

  Hypothyroidism is a condition in which the thyroid gland does not produce enough thyroid hormone. It is the most common thyroid disorder. […] The symptoms of hypothyroidism vary widely; some people have no symptoms, while others have dramatic symptoms or, rarely, life-threatening symptoms. […] The following list of symptoms are those that may be present prior to treatment; people on appropriate treatment should no longer be symptomatic. If symptoms persist, they likely have causes other than hypothyroidism. […] General symptoms — Thyroid hormone normally stimulates the metabolism, and most of the symptoms of hypothyroidism reflect slowing of metabolic processes. General symptoms may include fatigue, sluggishness, slight weight gain, and intolerance of cold temperatures. […] Hypothyroidism slows the heart rate and weakens the heart’s contractions, decreasing its overall function. Related symptoms may include fatigue and shortness of breath with exercise.

• #1 Become a member

  https://www.btf-thyroid.org/hypothyroidism-leaflet

  Sometimes the level of hypothyroidism is so slight that there are no obvious symptoms and it can only be detected by blood tests. It may be discovered as a result of blood tests for another autoimmune disorder or because there is a history of thyroid disorders in the family. A blood test result showing a slightly raised TSH level with a normal FT4 level indicates that you may have mild thyroid failure, also known as subclinical hypothyroidism and that you may have an increased risk of eventually developing hypothyroidism. You should have a regular thyroid function test and consult your doctor if you notice any symptoms, as you may benefit from treatment.

• #1

  https://www.nhs.uk/conditions/underactive-thyroid-hypothyroidism/symptoms/

  Many symptoms of an underactive thyroid (hypothyroidism) are the same as those of other conditions, so it can easily be confused for something else. […] Symptoms usually develop slowly and you may not realise you have a medical problem for several years. […] Common symptoms include: tiredness, being sensitive to cold, weight gain, constipation, depression, slow movements and thoughts, muscle aches and weakness, muscle cramps, dry and scaly skin, brittle hair and nails, loss of libido (sex drive), pain, numbness and a tingling sensation in the hand and fingers (carpal tunnel syndrome), irregular periods or heavy periods. […] Elderly people with an underactive thyroid may develop memory problems and depression. Children may experience slower growth and development. Teenagers may start puberty earlier than normal.

• #1 7 Early Warning Signs of Thyroid Issues – Associated Endocrinologist, P.C.

  https://www.endocrinemds.com/blogs/7-early-warning-signs-of-thyroid-issues/

  Patients with an underactive thyroid produce too little thyroid hormone, causing their metabolism to slow significantly. This manifests as symptoms such as lethargy and weight gain. Hypothyroidism is more common than hyperthyroidism, with about 1 in 20 Americans suffering from the condition. […] One of the key signs that a patient is developing hypothyroidism is fatigue; however, the fatigue associated with hypothyroidism is different from the fatigue experienced on an everyday basis. Patients with an underactive thyroid often report an overwhelming feeling of tiredness that remains even with adequate sleep. […] With an underactive thyroid, this process is essentially reversed. With too little thyroid hormone circulating in the body, the metabolism slows, and the body converts food to energy at a slower rate. Consequently, patients with hypothyroidism often gain weight rapidly without altering their diet.

• #1 Hypothyroidism: Signs and Symptoms

  https://www.healthline.com/nutrition/hypothyroidism-symptoms

  Hypothyroidism, or low thyroid, can cause a variety of signs and symptoms. This article will help you recognize and understand these effects. […] One of the most common symptoms of hypothyroidism is feeling worn out. Thyroid hormone controls energy balance and can influence whether you feel ready to go or ready to nap. […] Unexpected weight gain is another common symptom of hypothyroidism. […] Low levels of thyroid hormone flip the metabolic switch toward catabolism, which is when the body breaks down body tissues like muscle for energy. […] Low thyroid hormone causes hair follicles to stop regenerating, resulting in hair loss. […] Hypothyroidism is linked to depression. […] Many patients with hypothyroidism complain of mental fogginess and trouble concentrating. […] Low thyroid levels put the brakes on your colon. […] Both irregular and heavy menstrual bleeding are linked to hypothyroidism. […] Hypothyroidism, or low thyroid, is a common disorder. It can cause a variety of symptoms, such as fatigue, weight gain and feeling cold. It can also result in problems with your hair, skin, muscles, memory or mood.

• #1 Hypothyroidism Symptoms Checklist: Spot An Under-active Thyroid

  https://www.letsgetchecked.com/articles/hypothyroidism-symptoms-checklist-underactive-thyroid/?srsltid=AfmBOoox4jEMyDap_Q9iO-ctFQ7d8oVYi4bQpWV_ZWuz73jqBvhCcA2J

  The thyroid, the small butterfly-shaped gland located just at the front of your neck, plays a major role in metabolism, growth, and development. Thats why, if it is unable to produce enough of the thyroid hormone, which is the case in hypothyroidism, you are likely to experience a whole range of symptoms that affect your overall health. […] Hypothyroidism, also called underactive thyroid, occurs when the thyroid gland doesnt produce enough thyroid hormone. In its early stages, it may not cause many noticeable signs, however as your metabolism continues to slow down, you may start to notice more obvious symptoms. These might include: […] Fatigue and feeling weak or drained are common in those who have an underactive thyroid. […] Hypothyroidism may lead to weight gain as the metabolism slows down.

• #1 Patient education: Hypothyroidism (underactive thyroid) (Beyond the Basics) – UpToDate

  https://www.uptodate.com/contents/hypothyroidism-underactive-thyroid-beyond-the-basics/print

  Hypothyroidism weakens the respiratory muscles and decreases lung function. Symptoms can include fatigue, shortness of breath with exercise, and decreased ability to exercise. […] Women with hypothyroidism often have menstrual cycle irregularities; this commonly involves heavy periods, but some people have absent or infrequent periods. […] In people with severe hypothyroidism, trauma, infection, exposure to the cold, and certain medications can rarely trigger a life-threatening condition called myxedema coma. Symptoms can include hypothermia (low body temperature), sleepiness, and, in severe cases, loss of consciousness. […] In most cases, symptoms of hypothyroidism begin to improve within two weeks of starting thyroid replacement therapy. However, people with more severe symptoms, especially muscle pain and weakness, may require several months of treatment before they fully recover.

• #1 Patient education: Hypothyroidism (underactive thyroid) (Beyond the Basics) – UpToDate

  https://www.uptodate.com/contents/hypothyroidism-underactive-thyroid-beyond-the-basics

  Hypothyroidism is a condition in which the thyroid gland does not produce enough thyroid hormone. It is the most common thyroid disorder. […] The symptoms of hypothyroidism vary widely; some people have no symptoms, while others have dramatic symptoms or, rarely, life-threatening symptoms. […] The following list of symptoms are those that may be present prior to treatment; people on appropriate treatment should no longer be symptomatic. If symptoms persist, they likely have causes other than hypothyroidism. […] General symptoms — Thyroid hormone normally stimulates the metabolism, and most of the symptoms of hypothyroidism reflect slowing of metabolic processes. General symptoms may include fatigue, sluggishness, slight weight gain, and intolerance of cold temperatures. […] Hypothyroidism can decrease sweating. The skin may become dry and thick. The hair may become coarse, eyebrows may become more sparse, and nails may become brittle.

• #1 Could It Be A Thyroid Issue? 10 Surprising Symptoms | Henry Ford Health – Detroit, MI

  https://www.henryford.com/blog/2021/04/10-unexpected-symptoms-sluggish-thyroid

  When your brain isnt operating at full capacity, depression and anxiety naturally follow. […] If a woman with an underactive thyroid gets pregnant and hasnt been treated for hypothyroidism, complications may arise. On the plus side, if hypothyroidism is detected and treated, patients often go on to have successful pregnancies. […] A thyroid problem (whether underactive or hyperactive) often wreaks havoc on menstruation. A womans cycle might be longer or shorter, and they may have difficulty ovulating. […] An underactive thyroid can cause your body to retain water, even in your hands, wrists and fingers. […] Just as you can hold excess water in your hands and fingers, it can also show up on your face! […] Hypothyroidism can cause vocal changes, such as hoarseness, vocal fatigue, and a decreased range. […] If you feel cold when everyone else is comfortable, it could be a sign of hypothyroidism. After all, it takes energy to warm the body. […] Hair loss is common with hypothyroidism. With all systems slowing down, the body prioritizes critical survival functions. Hair growth isnt one of them.

• #1 Hypothyroidism: What is Hypothyroidism? Hypothyroidism Symptoms, Treatment, Diagnosis – Endocrine Surgery | UCLA Health

  https://www.uclahealth.org/medical-services/surgery/endocrine-surgery/conditions-treated/thyroid/hypothyroidism

  The thyroid gland makes two forms of thyroid hormone thyroxine (T4) and triiodothyronine (T3). Hypothyroidism is when the thyroid gland is not producing enough of these hormones. […] Symptoms may vary from mild to severe. […] Symptoms are different for each person. They are usually hard to notice and start slowly. They may be mistaken for symptoms of depression. […] Here are the most common symptoms and signs: Dull facial expressions, Tiredness and lack of energy (fatigue), Not being able to handle cold, Hoarse voice, Slow speech, Droopy eyelids, Puffy and swollen face, Weight gain, Constipation, Sparse, coarse, and dry hair, Coarse, dry, and thickened skin, Hand tingling or pain (carpal tunnel syndrome), Slow pulse, Muscle cramps, Joint pain, Sides of eyebrows thin or fall out, Confusion, Increased or irregular menstrual flow in women.

• #1 Symptoms of Hypothyroidism (underactive thyroid)

  https://www.medicalnewstoday.com/articles/324535

  Fatigue is a common symptom of hypothyroidism. Many people with the condition report feeling so exhausted that they are unable to go about their day as usual. […] Weight gain is another symptom of hypothyroidism. People with low levels of thyroid hormones can experience weight gain and an increase in body mass index (BMI). […] Hypothyroidism can affect a person’s muscles and joints in numerous ways, causing aches, pains, stiffness, swelling of the joints, tenderness, and weakness. […] It is common for individuals with untreated hypothyroidism to experience anxiety, depression, apathy, impaired memory function, less attentiveness and concentration, low moods, and slower thinking and speech. […] Hypothyroidism can slow down metabolism, leading to a drop in core body temperature. As such, some people with low levels of thyroid hormones may feel cold all the time or have a low tolerance to the cold.

• #1 Hypothyroidism symptoms and signs in an older person – Harvard Health

  https://www.health.harvard.edu/diseases-and-conditions/hypothyroidism-symptoms-and-signs-in-an-older-person

  Some people over age 60 have few, if any, symptoms of an underactive thyroid gland (hypothyroidism), while others experience the same symptoms younger people do. Still others have hypothyroidism symptoms that are not typical at all, making the diagnosis even more difficult. Any of the following signs and symptoms can indicate hypothyroidism in an older person. […] Unexplained high cholesterol. High cholesterol is sometimes the only evidence of an underactive thyroid in an older person. Because this sign may stand alone, high cholesterol warrants a thyroid evaluation. […] Heart failure. Reduced blood volume, weaker contractions of the heart muscle, and a slower heart rate—all caused by low thyroid hormone levels—can contribute to heart failure, when your heart can’t pump out blood as effectively as it should The ineffective pumping may cause subtle symptoms such as feeling less energetic or just walking more slowly. In more advanced stages, fluid can back up in the lungs and legs causing shortness of breath and leg swelling.

• #1 19+ Signs You Have Thyroid Problems

  https://thesurgicalclinics.com/signs-thyroid-isnt-working-right/

  Some of the thyroid symptoms in women specifically are changes to the menstrual cycle. In contrast to hyperthyroidism, hypothyroidism causes menstrual blood flow to become slower and heavier. Cycles can also become less frequent. Hypothyroidism also causes excess prolactin, which can prevent ovulation. Too much of the hormone prolactin can make it difficult to become pregnant. […] Finally, your nervous system slows down because your body can’t use energy as efficiently. Combined with the feelings of fatigue, you can feel sluggish, experience mood swings, and see signs of depression. Over half of people with hypothyroidism experience depression. Though, patients who receive hormone replacement therapy usually report improvement in depressive symptoms. […] Untreated hypothyroidism can lead to several serious health issues. Firstly, it can significantly affect mental well-being, potentially causing mood disorders such as depression. Additionally, there is a considerable risk of developing peripheral neuropathy, which involves nerve damage leading to pain and numbness in the extremities.

• #1 Hypothyroidism (underactive thyroid) – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/hypothyroidism/symptoms-causes/syc-20350284

  When hypothyroidism in infants isn’t treated, even mild cases can lead to severe physical and mental development problems. […] In general, children and teens with hypothyroidism have symptoms similar to those in adults. But they also may have: Poor growth that leads to short stature. Delayed development of permanent teeth. Delayed puberty. Poor mental development. […] Hypothyroidism that isn’t treated can lead to other health problems, including: Goiter. Hypothyroidism may cause the thyroid gland to become larger. This condition is called a goiter. A large goiter may cause problems with swallowing or breathing. Heart problems. Hypothyroidism can lead to a higher risk of heart disease and heart failure. That’s mainly because people with an underactive thyroid tend to develop high levels of low-density lipoprotein (LDL) cholesterol the „bad” cholesterol. Peripheral neuropathy. Hypothyroidism that goes without treatment for a long time can damage the peripheral nerves. These are the nerves that carry information from the brain and spinal cord to the rest of the body. Peripheral neuropathy may cause pain, numbness and tingling in the arms and legs. Infertility. Low levels of thyroid hormone can interfere with ovulation, which can limit fertility. Some of the causes of hypothyroidism, such as autoimmune disorders, also can harm fertility. […] Infants with hypothyroidism present at birth that goes untreated are at risk of serious physical and mental development problems. But if the condition is diagnosed within the first few months of life, the chances of typical development are excellent.

• #1 Symptoms of Hypothyroidism (underactive thyroid)

  https://www.medicalnewstoday.com/articles/324535

  Digestion is another body function that can slow down due to hypothyroidism. These digestive changes cause some people to experience constipation. […] Low hormone levels mean that the liver struggles to carry out the function of removing excess cholesterol from the body, and blood cholesterol levels can increase. […] People with hypothyroidism may also have a slower heart rate, or bradycardia. […] Untreated hormone disorders, including thyroid problems, can contribute to hair loss. […] An underactive thyroid affects the skin in various ways and can cause symptoms, such as dry, coarse skin, paleness, and thin, scaly skin. […] A goiter is an enlargement of the thyroid gland that appears as a swelling at the base of the neck. […] People with an underactive thyroid may experience heavy or irregular menstrual periods or spotting between periods.

• #1 Hypothyroid patients described what brain fog feels like

  https://www.thyroid.org/patient-thyroid-information/ct-for-patients/may-2022/vol-15-issue-5-p-3-4/

  HYPOTHYROIDISM Hypothyroid patients described what brain fog feels like […] Common symptoms of hypothyroidism include feeling tired, cold, and sluggish along with weight gain, dry skin and constipation. […] One particular symptom that patients often report is brain fog, which is described as a group of symptoms including low energy, forgetfulness, sleepiness and difficulty focusing. […] Most participants reported having brain fog very frequently or all the time and about half reported having this symptom before the diagnosis of hypothyroidism. […] Over 95% of the patients reported having fatigue, forgetfulness, sleepiness and difficulty focusing when experiencing brain fog. […] Brain fog in hypothyroid patients was associated most frequently with fatigue, forgetfulness and difficulty focusing and often persists after normalization of the thyroid hormone levels and negatively impacts patients lives. […] More research is needed to better understand the relationship between brain fog and hypothyroidism and to improve current treatment regimens.

• #1 Overview: Underactive thyroid (hypothyroidism) – InformedHealth.org – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK279601/

  The thyroid gland makes hormones that control many of the processes in our body. The thyroid is said to be underactive if it doesn’t produce enough hormones. This condition is also referred to as hypothyroidism. It can lead to various problems, such as tiredness, lethargy, changes in the skin, and constipation. […] Symptoms of this might include: Weakness and tiredness, Low pulse, Shortness of breath. […] Mental health or cognitive problems are also possible. For instance: Problems with concentration or memory, Lethargy, Depression or other psychological problems. […] It can lead to physical changes too, such as: Dry skin, sometimes puffy and thickened especially in the face, Dry hair, hair loss, Slight to moderate weight gain, Enlarged thyroid (goiter), Low, hoarse voice, Enlarged tongue, Constipation, Heavy periods or other menstrual problems, reduced fertility, Erectile dysfunction, Poor hearing.

• #1 Hypothyroidism (Low Thyroid Level) in Infants, Children, and Teens

  https://www.webmd.com/women/low-thyroid-symptoms

  Changes in your skin can happen, too. It can become: Cool and pale, Dry and itchy, Rough or scaly, Yellow-looking, especially on the soles of your feet, palms, and the „laugh lines” of your face. […] Your nails may turn brittle or grow slowly. Your hair might change, too. It could become brittle or coarse, or you could have hair loss. Sometimes you can get thinning or loss of eyebrow hair, especially on the outer third of your brows. […] Because hypothyroidism can weaken your heart and lungs, you might also have: A slow heart rate, Shortness of breath during exercise, Weakness, High blood pressure, High cholesterol levels. […] Although the condition usually affects adults, it can happen to kids, too. They have the same symptoms as grown-ups, but because thyroid hormones control growth, they frequently stop growing like they should. They may also reach puberty later. Adolescent girls could have problems with menstrual cycles, too. […] Kids with hypothyroidism can also have problems with schoolwork, thanks to memory problems and fatigue. […] No matter how old you are, if you’re having symptoms, see your doctor. They can prescribe medicine that will boost your levels and get you back to feeling like your old self.

• #1 Patient education: Hypothyroidism (underactive thyroid) (Beyond the Basics) – UpToDate

  https://www.uptodate.com/contents/hypothyroidism-underactive-thyroid-beyond-the-basics

  Hypothyroidism slows the heart rate and weakens the heart’s contractions, decreasing its overall function. Related symptoms may include fatigue and shortness of breath with exercise. […] Hypothyroidism weakens the respiratory muscles and decreases lung function. Symptoms can include fatigue, shortness of breath with exercise, and decreased ability to exercise. […] Hypothyroidism slows the actions of the digestive tract, causing constipation. Rarely, the digestive tract may stop moving entirely. […] Women with hypothyroidism often have menstrual cycle irregularities; this commonly involves heavy periods, but some people have absent or infrequent periods. […] In people with severe hypothyroidism, trauma, infection, exposure to the cold, and certain medications can rarely trigger a life-threatening condition called myxedema coma. Symptoms can include hypothermia (low body temperature), sleepiness, and, in severe cases, loss of consciousness. […] In most cases, symptoms of hypothyroidism begin to improve within two weeks of starting thyroid replacement therapy. However, people with more severe symptoms, especially muscle pain and weakness, may require several months of treatment before they fully recover.

• #1 Underactive thyroid | NHS inform

  https://www.nhsinform.scot/illnesses-and-conditions/glands/underactive-thyroid/

  Low levels of thyroid-producing hormones, such as triiodothyronine (T3) and thyroxine (T4), can change the way the body processes fat. […] This can cause high cholesterol and atherosclerosis (clogging of the arteries), which can potentially lead to serious heart-related problems, such as angina and heart attack. […] An underactive thyroid (hypothyroidism) is usually treated by taking daily hormone replacement tablets called levothyroxine. […] Levothyroxine replaces the thyroxine hormone, which your thyroid doesnt make enough of. […] An underactive thyroid is a lifelong condition, so youll usually need to take levothyroxine for the rest of your life. […] Several complications can occur if you have an underactive thyroid that isnt treated. […] If you have an untreated underactive thyroid, your risk of developing cardiovascular disease is increased.

• #1 Hypothyroidism – Hormonal and Metabolic Disorders – Merck Manual Consumer Version

  https://www.merckmanuals.com/home/hormonal-and-metabolic-disorders/thyroid-gland-disorders/hypothyroidism

  Typical symptoms of hypothyroidism, such as weight gain, muscle cramps, tingling of the hands, and the inability to tolerate cold, are less common among older adults. […] Because symptoms in older adults can be different from those in younger adults, are often subtle and vague, and are common among older adults who do not have hypothyroidism, doctors may not recognize these symptoms as being caused by hypothyroidism.

• #1 Hypothyroidism: MedlinePlus Medical EncyclopediaLock

  https://medlineplus.gov/ency/article/000353.htm

  Hypothyroidism is a condition in which the thyroid gland does not make enough thyroid hormone. This condition is often called underactive thyroid. […] Hypothyroidism is more common in women and people over age 50. […] Early symptoms: Hard stools or constipation, Feeling cold (wearing a sweater when others are wearing a t-shirt), Fatigue or feeling slowed down, Heavier and irregular menstrual periods, Joint or muscle pain, Paleness or dry skin, Sadness or depression, Thin, brittle hair or fingernails, Weakness, Weight gain. […] Late symptoms, if untreated: Decreased taste and smell, Hoarseness, Puffy face, hands, and feet, Slow speech, Thickening of the skin, Thinning of eyebrows, Low body temperature, Slow heart rate. […] In most cases, thyroid hormone level becomes normal with proper treatment. You will likely take a thyroid hormone medicine for the rest of your life.

• #1 Overview: Underactive thyroid (hypothyroidism) – InformedHealth.org – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK279601/

  If an underactive thyroid isn’t treated, various problems can develop. […] If an underactive thyroid is left untreated in adults, complications such as cardiovascular (heart and blood vessel) disease, confusion and drowsiness are possible. In very rare cases it can lead to a coma. […] How an underactive thyroid develops over time will depend on what’s causing it. It often develops slowly because it is very commonly caused by an inflammation of the thyroid gland. This usually leads to the gradual loss of thyroid tissue, which can go unnoticed for a long time: The remaining tissue makes up for this by producing more hormones. But symptoms arise when that is no longer possible.

• #1

  https://www.nhs.uk/conditions/underactive-thyroid-hypothyroidism/symptoms/

  If an underactive thyroid is not treated, it’s unlikely that you’d have many of the later symptoms of an underactive thyroid, because the condition is often identified before more serious symptoms appear. […] Later symptoms of an underactive thyroid include: a low-pitched and hoarse voice, a puffy-looking face, thinned or partly missing eyebrows, a slow heart rate, hearing loss, anaemia.

• #1 Symptoms of Hypothyroidism (underactive thyroid)

  https://www.medicalnewstoday.com/articles/324535

  Hypothyroidism develops slowly, and symptoms may go unnoticed for a long time. In the event that hypothyroidism is left untreated, a person may develop late symptoms such as decreased taste and smell, hoarseness, puffy face, hands, and feet, slow speech, thickening of the skin, thinning of eyebrows, low body temperature, and slow heart rate. […] Hypothyroidism (underactive thyroid) is a relatively common condition, affecting almost 5 people out of 100 in the U.S. This condition occurs when the thyroid gland does not produce enough hormones. […] Because thyroid hormones are essential for the normal functioning of many different parts of the body, low levels can cause a wide variety of symptoms. This includes fatigue, weight gain, and memory and mood changes.

• #1 Hypothyroidism (underactive thyroid) | healthdirect

  https://www.healthdirect.gov.au/hypothyroidism

  If untreated, symptoms can get worse gradually, as your thyroid function gets worse. […] Hypothyroidism can lead to a range of health problems including: high cholesterol, decreased fertility, problems with thinking, depression, heart disease, a severe type of hypothyroidism called myxoedema coma this is very rare. […] Children and teenagers with untreated hypothyroidism can have problems with growth and development. […] If you are pregnant, untreated hypothyroidism increases your risk of miscarriage and other pregnancy complications.

• #1 Hypothyroidism (underactive thyroid) – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/hypothyroidism/diagnosis-treatment/drc-20350289

  The symptoms of hypothyroidism can be different from person to person. And they often look like symptoms of other health problems. […] If the second test shows high TSH but T-4 and T-3 are in the standard range, then the diagnosis is a condition called subclinical hypothyroidism. It usually doesn’t cause any noticeable symptoms. […] Treatment for hypothyroidism usually includes taking the thyroid hormone medicine levothyroxine (Levo-T, Synthroid, others) every day. This medicine is taken by mouth. It returns hormone levels to a healthy range, eliminating symptoms of hypothyroidism. […] You’ll likely start to feel better one or two weeks after you begin treatment. Treatment with levothyroxine likely will be lifelong. […] If you are diagnosed with subclinical hypothyroidism, talk about treatment with your health care provider. For a mild rise in TSH, thyroid hormone medicine may not be useful. If your TSH level is higher, but still in the subclinical range, thyroid hormones may improve some symptoms.

• #1 Borderline Hypothyroidism: Symptoms, Treatment and More

  https://www.health.com/condition/thyroid/treatment-for-borderline-underactive-thyroid

  Subclinical, or „borderline,” hypothyroidism is an early form of hypothyroidism. This condition causes an underactive thyroid, which results in high thyroid-stimulating hormone (TSH) levels. People with borderline hypothyroidism often do not have symptoms. […] An underactive thyroid, meaning it’s not producing enough thyroid hormone, can cause symptoms like: […] Borderline hypothyroidism can be so minor that there are only very mild, non-specific symptoms or none at all. Most cases are asymptomatic, meaning no symptoms. This subclinical form increases a person’s chances of hypothyroidism symptoms later in life. […] Borderline hypothyroidism can progress to overt hypothyroidism, so some healthcare providers say it’s useful to take medication. This is especially true if you also have a risk of heart disease, as even mild hypothyroidism can lead to elevated cholesterol levels. […] About 50% of borderline hypothyroidism have normal TSH levels within one to two years. Nearly 25% of those, in contrast, can progress into hypothyroidism.

• #1 Hypothyroidism (Underactive Thyroid) – NIDDK

  https://www.niddk.nih.gov/health-information/endocrine-diseases/hypothyroidism

  Hypothyroidism, also called underactive thyroid, is when the thyroid gland doesnt make enough thyroid hormones to meet your bodys needs. […] Hypothyroidism has many symptoms that can vary from person to person. Some common symptoms of hypothyroidism include fatigue, weight gain, trouble tolerating cold, joint and muscle pain, dry skin or dry, thinning hair, heavy or irregular menstrual periods or fertility problems, slowed heart rate, and depression. […] Because hypothyroidism develops slowly, you may not notice symptoms of the disease for months or even years. […] Many of these symptoms, especially fatigue and weight gain, are common and do not necessarily mean you have a thyroid problem. […] Hypothyroidism can contribute to high cholesterol. If you have high cholesterol, you should get tested for hypothyroidism. Rarely, severe untreated hypothyroidism may lead to myxedema coma, an extreme form of hypothyroidism in which the bodys functions slow to a life-threatening point. Myxedema coma requires immediate medical treatment.

• #1 Hypothyroidism Clinical Presentation: History, Physical Examination

  https://emedicine.medscape.com/article/122393-clinical

  Brain fog, characterized by lack of energy, forgetfulness, and fatigue, is another symptom of hypothyroidism. In one survey, 905 out of 5282 people (17.1%) reported suffering from symptoms of brain fog not long after being diagnosed with hypothyroidism. […] Research indicates that hypothyroidism is linked to sexual dysfunction in males, including erectile dysfunction, delayed ejaculation, and hypoactive sexual desire (HSD). It is also suggested that sexual dysfunction in males results from the hypothyroid state itself rather than from the antibodies that lead to hypothyroidism. […] Myxedema coma is a severe form of hypothyroidism that results in an altered mental status, hypothermia, bradycardia, hypercapnia, and hyponatremia. Cardiomegaly, pericardial effusion, cardiogenic shock, and ascites may be present. Myxedema coma most commonly occurs in individuals with undiagnosed or untreated hypothyroidism who are subjected to an external stress, such as low temperature, infection, myocardial infarction, stroke, or medical intervention (eg, surgery or hypnotic drugs).

• #1 Signs of thyroid issues: How do you know if you have them? | MD Anderson Cancer Center

  https://www.mdanderson.org/cancerwise/signs-of-thyroid-issues–hypothyroidism-hyperthyroidism-how-do-you-know-if-you-have-them.h00-159622590.html

  Symptoms of hypothyroidism include: lethargy, constipation, hair thinning or hair loss, bloating, puffiness or swelling in the face or legs, cold intolerance, dry skin. […] Weight gain due to fluid retention can sometimes be a symptom of uncontrolled hypothyroidism, but it resolves fairly quickly with treatment. […] Fluid retention starts improving right after you begin thyroid hormone replacement therapy, notes Iyer. It clears up within 1-2 weeks of starting or adjusting medication. […] Usually, subacute and post-partum thyroiditis resolve on their own, says Iyer, so patients need only manage the symptoms. But if the abnormal labs persist beyond six months, contact your doctor.

• #1 Underactive thyroid | NHS inform

  https://www.nhsinform.scot/illnesses-and-conditions/glands/underactive-thyroid/

  An underactive thyroid (hypothyroidism) is when your thyroid gland doesnt produce enough of the hormone thyroxine (also called T4). […] Most cases of an underactive thyroid are caused by the immune system attacking the thyroid gland and damaging it, or by damage that occurs as a result of treatments for thyroid cancer or an overactive thyroid. […] An underactive thyroid often occurs when the immune system, which usually fights infection, attacks the thyroid gland. […] This damages the thyroid, which means its not able to make enough of the hormone thyroxine, leading to the symptoms of an underactive thyroid. […] If you have any of these symptoms, see your GP and ask to be tested for an underactive thyroid. […] Its very important that an underactive thyroid (hypothyroidism) is diagnosed as soon as possible.

• #1 Hypothyroidism | American Thyroid Association

  https://www.thyroid.org/hypothyroidism/

  Hypothyroidism is an underactive thyroid gland. Hypothyroidism means that the thyroid gland cant make enough thyroid hormone to keep the body running normally. People are hypothyroid if they have too little thyroid hormone in the blood. […] When thyroid hormone levels are too low, the bodys cells cant get enough thyroid hormone and the bodys processes start slowing down. As the body slows, you may notice that you feel colder, you tire more easily, your skin is getting drier, youre becoming forgetful and depressed, and youve started getting constipated. […] There is no cure for hypothyroidism, and most patients have it for life. […] Hypothyroidism may become more or less severe, and your dose of thyroxine may need to change over time. […] But if you take your pills every day and work with your doctor to get and keep your thyroxine dose right, you should be able to keep your hypothyroidism well controlled throughout your life. Your symptoms should disappear and the serious effects of low thyroid hormone should improve. If you keep your hypothyroidism well-controlled, it will not shorten your life span.

• #1 How to tell if you have an underactive thyroid

  https://www.baystatehealth.org/articles/what-is-hypothyroidism

  If youre experiencing two or more of these symptoms, you should schedule a visit with your doctor. […] Treatment for hypothyroidism consists of a daily-use synthetic thyroid hormone levothyroxine in the form of a pill, says Osakwe. This oral medication works to restore adequate hormone levels and reduce symptoms. […] For most patients, hypothyroidism medication will need to be taken for the rest of their life to keep the disease under control. Your doctor will check your TSH levels annually and make adjustments based on the findings.

• #2 Hypothyroidism – Hormonal and Metabolic Disorders – Merck Manual Consumer Version

  https://www.merckmanuals.com/home/hormonal-and-metabolic-disorders/thyroid-gland-disorders/hypothyroidism

  Hypothyroidism is underactivity of the thyroid gland that leads to inadequate production of thyroid hormones and a slowing of vital body functions. […] Facial expressions become dull, the voice is hoarse, speech is slow, eyelids droop, and the eyes and face become puffy. […] Insufficient thyroid hormones cause body functions to slow. Symptoms are subtle and develop gradually. Some of them may be mistaken for depression, especially among older adults. […] Many people with hypothyroidism are fatigued, gain weight, become constipated, develop muscle cramps, and are unable to tolerate cold. […] If untreated, hypothyroidism can eventually cause anemia, a low body temperature, and heart failure. This situation may progress to confusion, stupor, or coma (myxedema coma). […] Many older adults have some degree of hypothyroidism. About 10% of women and 6% of men are affected.

• #2 Underactive thyroid | NHS inform

  https://www.nhsinform.scot/illnesses-and-conditions/glands/underactive-thyroid/

  An underactive thyroid gland (hypothyroidism) is where your thyroid gland doesnt produce enough hormones. […] Common signs of an underactive thyroid are tiredness, weight gain and feeling depressed. […] Symptoms of an underactive thyroid are often similar to those of other conditions, and they usually develop slowly, so you may not notice them for years. […] You should see your GP and ask to be tested for an underactive thyroid if you have symptoms including: tiredness, weight gain, depression, being sensitive to the cold, dry skin and hair, muscle aches. […] Many symptoms of an underactive thyroid (hypothyroidism) are the same as those of other conditions, so it can easily be confused for something else. […] Symptoms usually develop slowly and you may not realise you have a medical problem for several years.

• #2

  https://myhealth.alberta.ca/Health/pages/conditions.aspx?hwid=hw145667

  If untreated, hypothyroidism may lead to myxedema. This condition causes swelling of tissues, increased fluid around the heart and lungs, slowed muscle reflexes, and a slowed ability to think. […] People with mild (subclinical) hypothyroidism have only slightly abnormal thyroid blood test results and often do not have obvious symptoms or health problems. […] Although rare, hypothyroidism can occur in infants, children, and teens. […] Symptoms of hypothyroidism during and after pregnancy include fatigue, weight loss, dizziness, depression, and memory and concentration problems. […] If hypothyroidism is treated within the first month of life, a child will grow and develop normally. Untreated hypothyroidism in infants can cause brain damage, leading to intellectual disability and developmental delays.

• #2 Hypothyroidism (Underactive Thyroid): Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/12120-hypothyroidism

  Hypothyroidism is when your thyroid gland doesnt make and release enough hormone into your bloodstream. The condition slows down your metabolism, which may make you gain weight unexpectedly or feel tired all the time. […] Hypothyroidism symptoms may include fatigue, hoarseness, weight gain, muscle weakness, numbness, brain fog and depression. Hypothyroidism can cause varying symptoms and may mimic other conditions. […] Hypothyroidism symptoms usually develop slowly over time. In some cases, it can take years. Some possible symptoms include: Brain fog (forgetfulness or difficulty concentrating), Depression and anxiety, Dry, coarse skin and hair, Elevated blood cholesterol levels, Feeling tired (fatigue), Frequent or heavy menstrual periods, Hoarseness, Inability to tolerate cold temperatures, Numbness or tingling in your hands, Physical changes in your face (drooping eyelids, puffiness around your eyes), Soreness or muscle weakness, Unexplained weight gain.

• #2 10 Signs of Hypothyroidism (Underactive Thyroid) – TYE Medical

  https://tyemedical.com/blog/10-signs-of-hypothyroidism-underactive-thyroid/?srsltid=AfmBOorj1-da4BwieATwXCb6e8lXDwyfY7M6fBbDlNh5c3VC8vTORKXi

  As the condition progresses to moderate or severe, you might notice joint pain, stiffness, and even swelling. Thyroid hormone is required to develop bodily tissues like the growth of bone and cartilage, which means maintenance and repair dont happen when needed. […] This is one of the lesser-known signs of hypothyroidism, but the two conditions can be related. When youre not producing enough thyroid hormones, your liver cant process cholesterol effectively. This means less LDL cholesterol is removed from the blood, elevating your blood cholesterol. […] Without the right level of thyroid hormones, your hair follicles will stop regenerating, causing hair loss. […] As your metabolism slows from a lack of thyroid hormone, your body can begin to break down muscle tissue for a source of energy (catabolism). This causes feelings of weakness, stiffness, and even aching in your muscles.

• #2 The lowdown on thyroid slowdown – Harvard Health

  https://www.health.harvard.edu/newsletter_article/the-lowdown-on-thyroid-slowdown

  Hypothyroidism can cause a host of health problems. Fortunately, an underactive thyroid can be easily diagnosed and treated. […] Low thyroid hormone production, or hypothyroidism, causes a range of symptoms, such as fatigue, constipation, dry skin and brittle nails, aches and pains, and feeling down. […] Hypothyroidism symptoms can differ from person to person. In some women, the onset is so gradual that it’s hardly noticeable; in others, hypothyroidism symptoms come on abruptly over the course of a few weeks or months. An underactive thyroid is mild in some women and severe in others. In general, the lower thyroid hormone levels are, the more pronounced and severe the symptoms. […] Characteristic signs of hypothyroidism include: Fatigue. Low thyroid function can result in less energy. Cold intolerance. Slowed-down cells burn less energy, so the body produces less heat. You may feel chilly even when others around you are comfortable. Appetite loss, weight gain. With lower energy needs, you require fewer calories, so your appetite declines. Yet, you may gain a few pounds because your body converts fewer calories into energy, leaving more to be stored as fat. Cardiovascular effects. Low levels of thyroid hormone can lead to high blood pressure and elevated levels of total and LDL cholesterol. The heart’s pumping ability may slow, reducing blood flow to the skin, kidneys, brain, and other vital tissues, and increasing the risk of heart failure, especially in older women. Mental effects. Hypothyroidism and depression share many of the same symptoms, including difficulty in concentrating, memory problems, and loss of interest in things that are normally important to you. They call for different treatments, so proper diagnosis is important. Other signs and symptoms. Slowed metabolism reduces sweating, the skin’s natural moisturizer, so the skin may become dry and flaky and nails brittle. Hair may thin or become coarse. Digestive processes slow, causing constipation. Speech and movement may also slow down. In younger women, periods may become heavier and more frequent, or they may stop; infertility is sometimes a problem. Muscle aches and pain around the joints, including carpal tunnel syndrome, are common. Older women may have balance problems. […] Hypothyroidism is usually treated with a daily dose of synthetic T4 (levothyroxine sodium), in pill form. Levothyroxine works exactly like your own body’s thyroid hormone. […] Most people who take enough synthetic T4 to normalize TSH levels will find that their symptoms go away.

• #2 Hypothyroidism (underactive thyroid) – Symptoms and causes – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/hypothyroidism/symptoms-causes/syc-20350284

  When hypothyroidism in infants isn’t treated, even mild cases can lead to severe physical and mental development problems. […] In general, children and teens with hypothyroidism have symptoms similar to those in adults. But they also may have: Poor growth that leads to short stature. Delayed development of permanent teeth. Delayed puberty. Poor mental development. […] Hypothyroidism that isn’t treated can lead to other health problems, including: Goiter. Hypothyroidism may cause the thyroid gland to become larger. This condition is called a goiter. A large goiter may cause problems with swallowing or breathing. Heart problems. Hypothyroidism can lead to a higher risk of heart disease and heart failure. That’s mainly because people with an underactive thyroid tend to develop high levels of low-density lipoprotein (LDL) cholesterol the „bad” cholesterol. Peripheral neuropathy. Hypothyroidism that goes without treatment for a long time can damage the peripheral nerves. These are the nerves that carry information from the brain and spinal cord to the rest of the body. Peripheral neuropathy may cause pain, numbness and tingling in the arms and legs. Infertility. Low levels of thyroid hormone can interfere with ovulation, which can limit fertility. Some of the causes of hypothyroidism, such as autoimmune disorders, also can harm fertility. […] Infants with hypothyroidism present at birth that goes untreated are at risk of serious physical and mental development problems. But if the condition is diagnosed within the first few months of life, the chances of typical development are excellent.

• #2 Symptoms of Hypothyroidism (underactive thyroid)

  https://www.medicalnewstoday.com/articles/324535

  Digestion is another body function that can slow down due to hypothyroidism. These digestive changes cause some people to experience constipation. […] Low hormone levels mean that the liver struggles to carry out the function of removing excess cholesterol from the body, and blood cholesterol levels can increase. […] People with hypothyroidism may also have a slower heart rate, or bradycardia. […] Untreated hormone disorders, including thyroid problems, can contribute to hair loss. […] An underactive thyroid affects the skin in various ways and can cause symptoms, such as dry, coarse skin, paleness, and thin, scaly skin. […] A goiter is an enlargement of the thyroid gland that appears as a swelling at the base of the neck. […] People with an underactive thyroid may experience heavy or irregular menstrual periods or spotting between periods.

• #2 Hypothyroidism symptoms and signs in an older person – Harvard Health

  https://www.health.harvard.edu/diseases-and-conditions/hypothyroidism-symptoms-and-signs-in-an-older-person

  Bowel movement changes. An older person with hypothyroidism might have constipation because stool moves more slowly through the bowels. […] Joint or muscle pain. Vague body aches and pain commonly occur in people with hypothyroidism. It sometimes is the only symptom of hypothyroidism in an older person. Many people experience general muscle aches, particularly in large muscle groups like those in the legs. […] Psychiatric problems. Clinical depression can affect anyone with untreated hypothyroidism. In older people it can be the only hypothyroidism symptom. Some older adults also develop psychosis with delusional behavior or hallucinations. […] Cognitive decline. Older people with a very underactive thyroid gland can sometimes be misdiagnosed as dementia. That’s why doctors usual order thyroid testing in people with new cognitive decline. If you or a loved one is being evaluated for dementia, make sure that a thyroid test is part of the evaluation.

• #2 19+ Signs You Have Thyroid Problems

  https://thesurgicalclinics.com/signs-thyroid-isnt-working-right/

  Some of the thyroid symptoms in women specifically are changes to the menstrual cycle. In contrast to hyperthyroidism, hypothyroidism causes menstrual blood flow to become slower and heavier. Cycles can also become less frequent. Hypothyroidism also causes excess prolactin, which can prevent ovulation. Too much of the hormone prolactin can make it difficult to become pregnant. […] Finally, your nervous system slows down because your body can’t use energy as efficiently. Combined with the feelings of fatigue, you can feel sluggish, experience mood swings, and see signs of depression. Over half of people with hypothyroidism experience depression. Though, patients who receive hormone replacement therapy usually report improvement in depressive symptoms. […] Untreated hypothyroidism can lead to several serious health issues. Firstly, it can significantly affect mental well-being, potentially causing mood disorders such as depression. Additionally, there is a considerable risk of developing peripheral neuropathy, which involves nerve damage leading to pain and numbness in the extremities.

• #2 Hypothyroidism – Wikipedia

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

  Newborn children with hypothyroidism may have normal birth weight and height (although the head may be larger than expected and the posterior fontanelle may be open). Some may have drowsiness, decreased muscle tone, poor weight gain, a hoarse-sounding cry, feeding difficulties, constipation, an enlarged tongue, umbilical hernia, dry skin, a decreased body temperature, and jaundice. A goiter is rare, although it may develop later in children who have a thyroid gland that does not produce functioning thyroid hormone. Normal growth and development may be delayed, and not treating infants may lead to an intellectual impairment (IQ 615 points lower in severe cases). Other problems include the following: difficulty with large scale and fine motor skills and coordination, reduced muscle tone, squinting, decreased attention span, and delayed speaking. Tooth eruption may be delayed.

• #2 Hypothyroidism symptoms and signs in an older person – Harvard Health

  https://www.health.harvard.edu/diseases-and-conditions/hypothyroidism-symptoms-and-signs-in-an-older-person

  Some people over age 60 have few, if any, symptoms of an underactive thyroid gland (hypothyroidism), while others experience the same symptoms younger people do. Still others have hypothyroidism symptoms that are not typical at all, making the diagnosis even more difficult. Any of the following signs and symptoms can indicate hypothyroidism in an older person. […] Unexplained high cholesterol. High cholesterol is sometimes the only evidence of an underactive thyroid in an older person. Because this sign may stand alone, high cholesterol warrants a thyroid evaluation. […] Heart failure. Reduced blood volume, weaker contractions of the heart muscle, and a slower heart rate—all caused by low thyroid hormone levels—can contribute to heart failure, when your heart can’t pump out blood as effectively as it should The ineffective pumping may cause subtle symptoms such as feeling less energetic or just walking more slowly. In more advanced stages, fluid can back up in the lungs and legs causing shortness of breath and leg swelling.

• #2

  https://www.nhs.uk/conditions/underactive-thyroid-hypothyroidism/symptoms/

  Many symptoms of an underactive thyroid (hypothyroidism) are the same as those of other conditions, so it can easily be confused for something else. […] Symptoms usually develop slowly and you may not realise you have a medical problem for several years. […] Common symptoms include: tiredness, being sensitive to cold, weight gain, constipation, depression, slow movements and thoughts, muscle aches and weakness, muscle cramps, dry and scaly skin, brittle hair and nails, loss of libido (sex drive), pain, numbness and a tingling sensation in the hand and fingers (carpal tunnel syndrome), irregular periods or heavy periods. […] Elderly people with an underactive thyroid may develop memory problems and depression. Children may experience slower growth and development. Teenagers may start puberty earlier than normal.

• #2 Overview: Underactive thyroid (hypothyroidism) – InformedHealth.org – NCBI Bookshelf

  https://www.ncbi.nlm.nih.gov/books/NBK279601/

  If an underactive thyroid isn’t treated, various problems can develop. […] If an underactive thyroid is left untreated in adults, complications such as cardiovascular (heart and blood vessel) disease, confusion and drowsiness are possible. In very rare cases it can lead to a coma. […] How an underactive thyroid develops over time will depend on what’s causing it. It often develops slowly because it is very commonly caused by an inflammation of the thyroid gland. This usually leads to the gradual loss of thyroid tissue, which can go unnoticed for a long time: The remaining tissue makes up for this by producing more hormones. But symptoms arise when that is no longer possible.

• #2 Underactive thyroid | NHS inform

  https://www.nhsinform.scot/illnesses-and-conditions/glands/underactive-thyroid/

  Common symptoms include: tiredness, being sensitive to cold, weight gain, constipation, depression, slow movements and thoughts, muscle aches and weakness, muscle cramps, dry and scaly skin, brittle hair and nails, loss of libido (sex drive), pain, numbness and a tingling sensation in the hand and fingers (carpal tunnel syndrome), irregular periods or heavy periods. […] If an underactive thyroid isnt treated, it can lead to complications, including heart disease, goitre, pregnancy problems and a life-threatening condition called myxoedema coma (although this is very rare). […] Its unlikely that youd have many of the later symptoms of an underactive thyroid, because the condition is often identified before more serious symptoms appear. […] Later symptoms of an underactive thyroid include: a low-pitched and hoarse voice, a puffy-looking face, thinned or partly missing eyebrows, a slow heart rate, hearing loss, anaemia.

• #2 Borderline Hypothyroidism: Symptoms, Treatment and More

  https://www.health.com/condition/thyroid/treatment-for-borderline-underactive-thyroid

  Subclinical, or „borderline,” hypothyroidism is an early form of hypothyroidism. This condition causes an underactive thyroid, which results in high thyroid-stimulating hormone (TSH) levels. People with borderline hypothyroidism often do not have symptoms. […] An underactive thyroid, meaning it’s not producing enough thyroid hormone, can cause symptoms like: […] Borderline hypothyroidism can be so minor that there are only very mild, non-specific symptoms or none at all. Most cases are asymptomatic, meaning no symptoms. This subclinical form increases a person’s chances of hypothyroidism symptoms later in life. […] Borderline hypothyroidism can progress to overt hypothyroidism, so some healthcare providers say it’s useful to take medication. This is especially true if you also have a risk of heart disease, as even mild hypothyroidism can lead to elevated cholesterol levels. […] About 50% of borderline hypothyroidism have normal TSH levels within one to two years. Nearly 25% of those, in contrast, can progress into hypothyroidism.

• #2

  https://www.nhs.uk/conditions/underactive-thyroid-hypothyroidism/

  An underactive thyroid gland (hypothyroidism) is where your thyroid gland does not produce enough hormones. […] Common signs of an underactive thyroid are tiredness, weight gain and feeling depressed. […] Symptoms of an underactive thyroid are often similar to those of other conditions, and they usually develop slowly, so you may not notice them for years. […] You should see a GP and ask to be tested for an underactive thyroid if you have symptoms including: tiredness, weight gain, depression, being sensitive to the cold, dry skin and hair, muscle aches. […] If an underactive thyroid is not treated, it can lead to complications, including heart disease, goitre, pregnancy problems and a life-threatening condition called myxoedema coma (although this is very rare). […] Many of the body’s functions slow down when the thyroid does not produce enough of these hormones.

• #2 Underactive thyroid | NHS inform

  https://www.nhsinform.scot/illnesses-and-conditions/glands/underactive-thyroid/

  This is because having low levels of the hormone thyroxine can lead to increased levels of cholesterol in your blood. […] A goitre is an abnormal swelling of the thyroid gland that causes a lump to form in the throat. […] If an underactive thyroid isnt treated during pregnancy, theres a risk of problems occurring. […] In very rare cases, a severe underactive thyroid may lead to a life-threatening condition called myxoedema coma.

• #2 Hypothyroidism Information | Mount Sinai – New York

  https://www.mountsinai.org/health-library/report/hypothyroidism

  Symptoms of severe, untreated hypothyroidism may include: Carpal tunnel syndrome, Puffy „moon” face, Cognitive problems, including slow speech and difficulty concentrating, Numbness in fingers and toes, Hair loss, Decreased sense of taste and smell, Sleep apnea, Milky discharge from breasts, Accumulation of fluid in the skin and tissues, Decreased heart function. […] Hypothyroidism increases the risk for physical and mental problems. […] Hypothyroidism can interfere with fertility and increase the risk for miscarriage and preterm births. […] If hypothyroidism develops in children older than 2 years, severe intellectual disability is not a danger, but physical growth may be slowed and tooth eruption delayed.

• #2 Hypothyroidism: MedlinePlus Medical EncyclopediaLock

  https://medlineplus.gov/ency/article/000353.htm

  Myxedema crisis (also called myxedema coma), the most severe form of hypothyroidism, is rare. It occurs when thyroid hormone levels get very, very low. […] Symptoms and signs of myxedema coma include: Below normal body temperature, Decreased breathing, Low systolic blood pressure, Low blood sugar, Unresponsiveness, Inappropriate or uncharacteristic moods. […] Contact your provider if you have symptoms of hypothyroidism.

• #2 Patient education: Hypothyroidism (underactive thyroid) (Beyond the Basics) – UpToDate

  https://www.uptodate.com/contents/hypothyroidism-underactive-thyroid-beyond-the-basics/print

  Hypothyroidism weakens the respiratory muscles and decreases lung function. Symptoms can include fatigue, shortness of breath with exercise, and decreased ability to exercise. […] Women with hypothyroidism often have menstrual cycle irregularities; this commonly involves heavy periods, but some people have absent or infrequent periods. […] In people with severe hypothyroidism, trauma, infection, exposure to the cold, and certain medications can rarely trigger a life-threatening condition called myxedema coma. Symptoms can include hypothermia (low body temperature), sleepiness, and, in severe cases, loss of consciousness. […] In most cases, symptoms of hypothyroidism begin to improve within two weeks of starting thyroid replacement therapy. However, people with more severe symptoms, especially muscle pain and weakness, may require several months of treatment before they fully recover.

• #2 Hypothyroidism | American Thyroid Association

  https://www.thyroid.org/hypothyroidism/

  Hypothyroidism is an underactive thyroid gland. Hypothyroidism means that the thyroid gland cant make enough thyroid hormone to keep the body running normally. People are hypothyroid if they have too little thyroid hormone in the blood. […] When thyroid hormone levels are too low, the bodys cells cant get enough thyroid hormone and the bodys processes start slowing down. As the body slows, you may notice that you feel colder, you tire more easily, your skin is getting drier, youre becoming forgetful and depressed, and youve started getting constipated. […] There is no cure for hypothyroidism, and most patients have it for life. […] Hypothyroidism may become more or less severe, and your dose of thyroxine may need to change over time. […] But if you take your pills every day and work with your doctor to get and keep your thyroxine dose right, you should be able to keep your hypothyroidism well controlled throughout your life. Your symptoms should disappear and the serious effects of low thyroid hormone should improve. If you keep your hypothyroidism well-controlled, it will not shorten your life span.

• #3 Hypothyroidism | Hashimoto’s Disease | MedlinePlus

  https://medlineplus.gov/hypothyroidism.html

  Hypothyroidism, or underactive thyroid, happens when your thyroid gland doesn’t make enough thyroid hormones to meet your body’s needs. […] The symptoms of hypothyroidism can vary from person to person and may include: Fatigue, Weight gain, A puffy face, Trouble tolerating cold, Joint and muscle pain, Constipation, Dry skin, Dry, thinning hair, Decreased sweating, Heavy or irregular menstrual periods, Fertility problems in women, Depression, Slowed heart rate, Goiter, an enlarged thyroid that may cause your neck to look swollen. Sometimes it can cause trouble with breathing or swallowing. […] Because hypothyroidism develops slowly, many people don’t notice symptoms of the disease for months or even years. […] Hypothyroidism can contribute to high cholesterol. In rare cases, untreated hypothyroidism can cause myxedema coma. This is a condition in which your body’s functions slow down to the point that it becomes life-threatening. […] During pregnancy, hypothyroidism can cause complications, such as premature birth, high blood pressure in pregnancy, and miscarriage. It can also slow the baby’s growth and development.

• #3 Become a member

  https://www.btf-thyroid.org/psychological-symptoms-and-thyroid-disorders

  People with thyroid disorders often have emotional or mental health symptoms as well as physical symptoms. This is especially the case for people with hyperthyroidism (an overactive thyroid), hypothyroidism (an underactive thyroid) […] Cognitive or processing problems that can occur, most often with thyroid underactivity, include: Difficulties with concentration (brain fog), Short-term memory lapses, Lack of interest and mental alertness. […] Sometimes it can take a while for thyroid medication to become properly balanced, especially with hypothyroidism and following thyroid surgery. Coping with symptoms while medication is adjusted (particularly fatigue and lack of energy) may impact on your mental wellbeing. […] The outlook for all types of most thyroid disorders is good, and even if your psychological symptoms take a long time to settle initially, most people find they make a full recovery and lead normal lives once their thyroid condition is treated. […] Your emotional and mental health problems should improve as your thyroid condition stabilises, and the long-term prospect is good.

• #3 Hypothyroidism: Signs, Symptoms, and Complications

  https://www.verywellhealth.com/how-to-tell-if-you-are-hypothyroid-3231726

  For instance, while weight gain is typical in hypothyroidism, many people with an underactive thyroid are of average weight or even thin. […] Some of the symptoms of hypothyroidism are the result of a slowed metabolism. These include: Fatigue and sleepiness, Slowed movement and speech, Intolerance to cold, Weight gain, Slow heart rate, Sluggish reflexes, Constipation, Shortness of breath when exercising, Muscle cramps, stiffness, and weakness. […] Skin, hair, and nail changes often occur with hypothyroidism. […] „Brain fog” is another symptom of hypothyroidism. […] Hypothyroidism may also mimic the symptoms of depression. […] For some people with hypothyroidism, their first and perhaps the biggest clue is a history of menstrual and reproductive problems. […] While hypothyroidism doesn’t always have apparent, identifiable symptoms, there are some common signs that you may want to have your thyroid evaluated. These include fatigue, weight gain, skin, hair, and nail problems, „brain fog,” mood problems, and sexual and reproductive difficulties.

• #3 Hypothyroidism – Wikipedia

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

  In older children and adolescents, the symptoms of hypothyroidism may include fatigue, cold intolerance, sleepiness, muscle weakness, constipation, a delay in growth, overweight for height, pallor, coarse and thick skin, increased body hair, irregular menstrual cycles in girls, and delayed puberty. Signs may include delayed relaxation of the ankle reflex and a slow heartbeat. A goiter may be present with a completely enlarged thyroid gland; sometimes only part of the thyroid is enlarged and it can be knobby. […] Hypothyroidism is caused by inadequate function of the gland itself (primary hypothyroidism), inadequate stimulation by thyroid-stimulating hormone from the pituitary gland (secondary hypothyroidism), or inadequate release of thyrotropin-releasing hormone from the brain’s hypothalamus (tertiary hypothyroidism). Primary hypothyroidism is about a thousandfold more common than central hypothyroidism. Central hypothyroidism is the name used for secondary and tertiary hypothyroidism since the hypothalamus and pituitary gland are at the center of thyroid hormone control.

• #3 Patient education: Hypothyroidism (underactive thyroid) (Beyond the Basics) – UpToDate

  https://www.uptodate.com/contents/hypothyroidism-underactive-thyroid-beyond-the-basics/print

  Hypothyroidism weakens the respiratory muscles and decreases lung function. Symptoms can include fatigue, shortness of breath with exercise, and decreased ability to exercise. […] Women with hypothyroidism often have menstrual cycle irregularities; this commonly involves heavy periods, but some people have absent or infrequent periods. […] In people with severe hypothyroidism, trauma, infection, exposure to the cold, and certain medications can rarely trigger a life-threatening condition called myxedema coma. Symptoms can include hypothermia (low body temperature), sleepiness, and, in severe cases, loss of consciousness. […] In most cases, symptoms of hypothyroidism begin to improve within two weeks of starting thyroid replacement therapy. However, people with more severe symptoms, especially muscle pain and weakness, may require several months of treatment before they fully recover.

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