teenage hair loss
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In summary, male pattern hair loss (Androgenetic Alopecia) is an inherited condition manifested when androgens are present in normal amounts. teenage The gene can be inherited from the mother or father’s side. The onset, rate, and severity hair of hair loss loss are unpredictable. The severity increases with age and if the condition is present it will be progressive and relentless.FEMALE PATTERN HAIR LOSS (Androgenetic teenage and hair Alopecia)Female pattern loss hair teenage loss hair (FPHL) differs from male pattern hair loss (MPHL) in the following ways. It is more likely to be noticed later than in men, in the late twenties through early forties. loss It is likely to be seen at times of hormonal change, i.e., use of birth control pills, after childbirth, around the time of menopause, and after menopause. Recession at the temples is less likely than in men and women tend to maintain the position of their hairlines. Like in men, the entire top of the scalp is the area of risk. In women there is generally a diffuse thinning teenage throughout hair the area as opposed to thinning in the crown of men. Ludwig has classified hair loss in women into three classes. (See Ludwig Classification) The vast majority of women affected fall into the Ludwig I class.
Androgens (testosterone, loss dihydrotestosterone) are the most important control factors of human hair growth. Androgens must be present for the growth of beard, axillary (underarm), and pubic hair. Growth teenage of scalp hair hair is NOT androgen-dependent but androgens are necessary for the development of male and female pattern hair loss.MALE PATTERN HAIR LOSS (Androgenetic Alopecia)It is estimated that 35 million men in the United States are affected by androgenetic alopecia. "Andro" refers to the androgens (testosterone, dihydrotestosterone) necessary to produce male-pattern hair loss (MPHL). "Genetic" refers to the inherited gene necessary loss for MPHL to occur. In men who develop MPHL the hair loss may begin any time after puberty when blood levels of androgens rise. The first change is usually recession in the temporal areas, which is seen in 96 percent of mature Caucasian males, including those men not destined to progress to further hair loss. Hamilton and later Norwood have classified the patterns of MPHL (See Norwood-Hamilton Scale). Although the density of hair in a given pattern teenage of loss tends to diminish with age, there is no way to predict what pattern of hair loss a young man with early MPHL will eventually hair assume. In general, those who begin losing hair in the second decade are loss those in whom the hair loss will be the most severe. In some men, initial male-pattern hair loss teenage may be delayed until the late third to fourth decade. It is generally recognized that men in their 20’s have a 20 percent incidence of MPHL, in their 30’s a 30 percent incidence of MPHL, in their 40’s a 40 percent incidence of MPLH, etc. Using these numbers one can see that a male in his 90’s has a 90 percent chance hair of having some loss degree of MPHL.
THE NORMAL HAIR GROWTH CYCLEIt is important to teenage understand the normal hair growth cycle to understand why hair loss occurs. The hair follicle is an anatomical structure which evolved to produce and extrude (push out) a hair shaft. Hair is made up of proteins called keratins. Human hair grows in a continuous cyclic pattern of growth hair and rest known as the "hair growth cycle". Three phases of the cycle exist: loss Anagen= growth phase; Catagen=degradation phase; Telogen= resting phase. Periods of growth (anagen) between two and eight years are followed by a brief period, two to four weeks, in which the follicle is almost totally degraded teenage (catagen). The resting phase (telogen) hair then begins and lasts two to four months. loss Shedding of the hair occurs only after the next growth cycle (anagen) begins and a new hair shaft begins to emerge. On average 50-100 telogen hairs are shed every day. This is normal teenage hair loss and accounts for the hair loss seen every day in the shower and with hair combing. These hairs will regrow. Not more than 10 percent of the follicles are in the resting phase (telogen) at any time. A variety of factors hair can affect the hair growth cycle and cause temporary or permanent hair loss (alopecia) including loss medication, radiation, chemotherapy, exposure to chemicals, hormonal and nutritional factors, thyroid disease, generalized or local skin disease, and stress.
Come here to find hair loss treatments. A University developed treatment to help reverse hair loss.
teenage hair loss
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