Overview. Hair loss (alopecia) can affect just your scalp or your entire body, and it can be temporary or permanent. It can be the result of heredity, hormonal changes, medical conditions or a normal part of aging. Anyone can lose hair on their head, but it's more common in men.
Among the common causes are high fevers, childbirth, severe infections, severe chronic illness, severe psychological stress, major surgery or illnesses, over or under active thyroid gland, crash diets with inadequate protein, and a variety of medications.
It is typical for a certain amount of hair — usually around 100 strands — to fall out every day. If a person notices they are losing more hair than usual, they may have an underlying condition. It is important to consult a doctor to learn what the possible cause and best treatment may be.
An underlying health condition like an abnormal thyroid, anemia, vitamin deficiency, etc. Hormonal changes (pregnancy, menopause). Certain medications and supplements (blood pressure medicines, gout medicines and high doses of vitamin A). Genetic predisposition (it runs in your biological family history).
No Visible Pattern. With stress-related shedding, hair falls out evenly all over your scalp instead of in a defined pattern. You'll likely notice more hairs than usual coming out while shampooing, combing, or on your pillow, clothing, and bathroom floor.
Stress and hair loss don't have to be permanent. And if you get your stress under control, your hair might grow back. If you notice sudden or patchy hair loss or more than usual hair loss when combing or washing your hair, talk to your doctor.
It's perfectly normal to lose a few stray strands when running your fingers, or a comb, through your hair. But if you notice increased hair being pulled out when you are being gentle, this can be a cause of concern that you should get checked over.
Quick Summary: Hair Loss In The Shower
Losing 50 to 100 hairs after showering or throughout the day is normal1. This is a natural loss of hair according to the hair growth cycle. Shampooing your hair can increase the amount of hair you shed to between 100-250 hairs per day.
Severe and prolonged hypothyroidism and hyperthyroidism can cause loss of hair. The loss is diffuse and involves the entire scalp rather than discrete areas. The hair appears uniformly sparse.
Sudden hair loss can be temporary due to stressors, hormonal changes, medications, and other environmental factors. However, hair loss can also be permanent depending on the cause and how it affects the hair growth cycle.
Hair Loss in Your 30s and Beyond
By the time you turn 30, you have a 25% chance of displaying some balding. By age 50, 50% of men have at least some noticeable hair loss. By age 60, about two-thirds are either bald or have a balding pattern.
This simple test measures the severity of hair loss. During a pull test, a dermatologist grasps small sections of hair, about 40 strands, from different parts of the scalp and gently tugs. If six or more strands fall out, you have what's known as active hair loss.
Telogen effluvium: This type of hair loss involves rapid shedding of hair in a short amount of time. It typically happens a few months after your body goes through something physically or emotionally stressful. It can also result from sudden hormonal changes.
Under normal circumstances, it is possible to lose anywhere between 120-160 strands of hair a day. If you experience excessive hair loss it can be an indication of an abnormality within the scalp, symptoms of which may include itchiness, redness, flakes, and pus.
It may be a sign that you're losing too much hair if: Increased shedding. Thinning or bald spots. Changes in hairline.
An average person loses about 50 to 100 hairs every day and grows the same amount. Any physical or emotional stress or deficiency in iron, biotin, and vitamin D can negatively affect hair health (growth and density of the hair).
However, most sources agree that shedding between 50 and 150 hairs per day puts someone in the normal range. For example, the American Academy of Dermatology states that it's normal to shed between 50 and 100 hairs per day.
In other cases, thinning hair is triggered by something going on inside the body — for instance, a thyroid problem, a shift in hormones, a recent pregnancy, or an inflammatory condition. Hair loss may also be genetic. The most common genetic condition is known as female-pattern hair loss, or androgenic alopecia.
Generally, he says, the range is somewhere between once a day and once a week. “If you have very fine or thin hair, you may need to wash more often, while those with thick or curly hair may need to wash less often,” says Dr Elizabeth Bahar Houshmand, a double board certified dermatologist and hair health expert.
Quality sleep is as vital for healthy hair as it is for overall health. When we don't sleep enough, it can throw off the levels of certain hormones that help our hair grow, such as oestrogen and melatonin. People experiencing regular poor sleep tend to notice more hair shedding and thinning.
In children, common causes include fungal or bacterial infections, telogen effluvium (stress-related hair loss), and traction alopecia. However, the most common cause of hair loss in children is scalp ringworm, which is a treatable fungal infection. Doctors can treat most causes of hair loss and can often reverse it.