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Outside of normal hormonal changes and genetics, there are some health issues that may lead to hirsutism, a condition leading to excessive hair growth, which may crop up on the chin, upper lip ...
The amount and location of the hair is measured by a Ferriman–Gallwey score. It is different from hypertrichosis, which is excessive hair growth anywhere on the body. [3] Treatments may include certain birth control pills, antiandrogens, or insulin sensitizers. [1] Hirsutism affects between 5 and 15% of women across all ethnic backgrounds. [8]
Hirsutism is a type of hypertrichosis exclusive to women and children, resulting from an excess of androgen-sensitive hair growth. [16] Patients with hirsutism exhibit patterns of adult male hair growth. [1] Chest and back hair are often present on women with hirsutism. [16] Hirsutism is both congenital and acquired.
The process of hair growth occurs in distinct sequential stages: anagen is the active growth phase, catagen is the regression of the hair follicle phase, telogen is the resting stage, exogen is the active shedding of hair phase and kenogen is the phase between the empty hair follicle and the growth of new hair. [1]
Facial hair grows primarily on or around one's face. Both men and women experience facial hair growth. Like pubic hair, non-vellus facial hair will begin to grow in around puberty. Moustaches in young men usually begin to grow in at around the age of puberty, although some men may not grow a moustache until they reach late teens or at all. In ...
A relatively small number of women are able to grow enough facial hair to have a distinct beard. The condition is called hirsutism. It is usually the result of polycystic ovary syndrome which causes excess testosterone and an over-sensitivity to testosterone, thus (to a greater or lesser extent) results in male pattern hair growth, among other symptoms.
It is commonly stated that hair grows about 1 cm per month on average; however reality is more complex, since not all hair grows at once. Scalp hair was reported to grow between 0.6 cm and 3.36 cm per month. The growth rate of scalp hair somewhat depends on age (hair tends to grow more slowly with age), sex, and ethnicity. [3]
Somatotropic hormone or growth hormone (GH) is an anabolic hormone that stimulates the growth of all body tissues especially skeletal muscle and bone. It may act directly, or indirectly via insulin-like growth factors (IGFs). GH mobilizes fats, stimulates protein synthesis, and inhibits glucose uptake and metabolism.