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Perhaps the most well-known condition to cause hair loss is alopecia, which, Massick explains, “causes your own immune system to attack the hair follicles [so that] the hairs just fall out ...
Causes of hair loss. This could be a range of things from stress to too much daily manipulation. Genetics (Androgenetic Alopecia): "Genetic predisposition is a common cause of hair loss, with ...
Hair can regrow, but it may fall out again, either in the same places or new places. ... This type of hair loss can cause hair shedding. You might notice more hair than usual in your hair brush or ...
In alopecia areata, a hair follicle is attacked by the immune system. T-cells swarm the roots, killing the follicle. This causes the hair to fall out and parts of the head to become bald. Alopecia areata is thought to be a systemic autoimmune disorder in which the body attacks its own anagen hair follicles and suppresses or stops hair growth. [22]
Whereas FPHL is characterized by gradual, slow hair thinning, telogen effluvium (TE) is defined by a sudden, dramatic shedding that seemingly comes out of nowhere.
At the end of the resting phase, the hair falls out (exogen) and a new hair starts growing in the follicle, beginning the cycle again. Normally, about 40 (0–78 in men) hairs reach the end of their resting phase each day and fall out. [28] When more than 100 hairs fall out per day, clinical hair loss (telogen effluvium) may occur.