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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 ...
But in some cases, external factors — like stress — can affect hair, causing everything from thinning hair and a wider part, to a receding hairline, hair falling out in clumps or even patches ...
Traction alopecia is a type of alopecia or hair loss caused by a chronic pulling force being applied to the hair. [1] It commonly results from a person frequently wearing their hair in a particularly tight ponytail, pigtails, or braids with increased likelihood when hair is chemically relaxed as this compromises the hair shaft's tensile strength resulting in hair breakage.
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.
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]
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Dutasteride is also used in the treatment of male pattern hair loss and appears to have better effectiveness than finasteride for the condition. [27] [28] [29] While used off-label for male pattern hair loss in most of the world, dutasteride is specifically approved for this indication in South Korea and Japan. [30] [31]
"Most people notice a sudden onset of increased shedding the shower or clumps of hair falling out when they brush their hair. Typically, this occurs at around 3 months after delivery," says Dr ...