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In men, hair that grows near the temple region, front, vertex (top) and crown (back top of head where it starts to go in a 90 degree angle toward the neck) are most susceptible to DHT. Hair on the back and sides of the head (above the ear but below te top, are the LEAST susceptible to hair loss.
Approximately 95 percent of all men who suffer some degree of hair loss do so because of male pattern baldness otherwise known as androgenetic alopecia.
The pattern of female pattern baldness tends to be different from men's. Typically, women will notice diffuse hair loss throughout the mid scalp but retain the majority of their hairline.
Some of the pertinent points of the paper include:
1. Male pattern baldness begins with the recession of the hairline and results in complete hair loss across the top of the scalp. Female pattern baldness causes diffuse thinning behind the hairline but there is no recession of the hairline.
2. Male pattern baldness begins in the late teens and early twenties when the testosterone levels are high. Female pattern hair loss tends to begin in the late thirties and reaches its peak after fifty when testosterone levels are falling.
3. Male pattern hair loss affects up to 70% of all males. Female pattern hair loss affects up to 30% percent of women.
4. Females with a predisposition for male pattern hair loss rapidly develop typical male pattern baldness if given high doses of testosterone.
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