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The hair growth cycle consists of three main phases—anagen, catagen, and telogen—and each follicle on your head could be going through any one of these at any given time.
Trichotillomania (TTM), also known as hair-pulling disorder or compulsive hair pulling, is a mental disorder characterized by a long-term urge that results in the pulling out of one's own hair. [2] [4] A brief positive feeling may occur as hair is removed. [5] Efforts to stop pulling hair typically fail.
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 ...
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 many patients, hair loss and regrowth occurs simultaneously over the course of several years. [7] Among those in whom all body hair is lost, fewer than 10% recover. [18] About 0.15% of people are affected at any one time, and 2% of people are affected at some point in time. [7] [18] Onset is usually in childhood. [7]
You may notice sudden hair loss, gradual hair loss, or hair loss that gets better or worse over time. Essentially, alopecia in women can look quite different from one person to the next. Common ...
Trichophagia's loosest definition is the putting of hair in one's mouth, whether that be to chew it or suck on it, with the strictest definition being that the hair is swallowed and ingested. Trichophagia is most closely associated with trichotillomania , the pulling out of one's own hair, and thus any symptoms of trichotillomania could be ...
Hair loss is a well-known side effect of many chemotherapy drugs used to treat certain forms of cancer. Similar to other toxins that cause hair loss, hair loss from cancer medications usually isn ...