Hair Loss / Hair Falling / Male Pattern Baldness (MPB) / Female Pattern Baldness (FPB) / Baldness
- Poor nutrition. Having inadequate protein or iron in your diet or poor nourishment in other ways can cause you to experience hair loss. Fad diets, crash diets and certain illnesses, such as eating disorders, can cause poor nutrition.
- Medications. Certain drugs used to treat gout, arthritis, depression, heart problems and high blood pressure may cause hair loss in some people. Taking birth control pills also may result in hair loss for some women.
- Disease. Diabetes and lupus can cause hair loss.
- Medical treatments. Undergoing chemotherapy or radiation therapy may cause you to develop alopecia. Under these conditions, healthy, growing (anagen) hairs can be affected. After your treatment ends, your hair typically begins to regrow.
- Hormonal changes. Hormonal changes and imbalances can cause temporary hair loss. This could be due to pregnancy, having a baby, discontinuing birth control pills, beginning menopause, or an overactive or under active thyroid gland. The hair loss may be delayed by three months following a hormonal change, and it'll take another three months for new hair to grow back. During pregnancy, it's normal to have thicker, more luxuriant hair. It's also common to lose more hair than normal about three months after delivery. If a hormonal imbalance is associated with an overproduction of testosterone, there may be a thinning of hair over the crown of the scalp. Correcting hormonal imbalances may stop hair loss.
- Hair treatments. Chemicals used for dying, tinting, bleaching, straightening or permanent waves can cause hair to become damaged and break off if they are overused or used incorrectly. Over styling and excessive brushing also can cause hair to fall out if the hair shaft becomes damaged.
- Scalp infection. Infections, such as ringworm, can invade the hair and skin of your scalp, leading to hair loss. Once infections are treated, hair generally grows back. Ringworm, a fungal infection, can usually be treated with a topical or oral antifungal medication.
- Trichotillomania (hair-pulling disorder). Trichotillomania is a type of mental illness in which people have an irresistible urge to pull out their hair, whether it's from their scalp, their eyebrows or other areas of their body. Hair pulling from the scalp often leaves them with patchy bald spots on their head, which they may go to great lengths to disguise. Causes of trichotillomania are still being researched, and no specific cause has yet been found.