Why does my hair fall out?

Many reasons: Multiple reasons can cause hair loss such as weight loss, low iron levels, post-partum, thyroid problems. See your internist, dermatologist or endocrinologist.

Alopecia: Hair loss is tricky, especially in women. 1st, make sure no physically or emotionally stressful event occurred in last several months as this can cause hair loss. 2nd, look at your mom & sis for female pattern baldness. 3rd, go see your family doc for evaluation looking for autoimmune disorder & abnormal thyroid. Also check for dihydrotestosterone & testosterone. Check out http://goo.Gl/gnalh5.

Many reasons: Common reasons include stress, hair agents that are harmful to the hair, and hereditary and fungal infection issues. Is there generalized hair loss or is it in patches? Is there balding or just breakage? These questions need to answered by your medical professional; but effective treatment may require a dermatologist. Hope that helps.

Resting phase: Approximately 10% of hair follicles are in the 'resting phase' during which time the fall out to make room for new growth. Up to 100 hairs lost per day can be considered as normal. Infection, stress, nutritional deficiencies, certain diseases and hormone fluctuations can cause excessive hair loss.