Male Pattern Hair Loss or Androgenetic Alopecia is the most common type of hair loss found in men. Up to 80% of men will experience some level of hair loss by their 70s. Most will discover their hair loss in their 30s and 40s however, quite a number may start long before in their teens.
So what causes Male Pattern Hair Loss?
Male Pattern Hair Loss is due to the activity of a hormone Dihydrotestosterone, a potent androgen (male hormone). The hair follicle in affected men is more sensitive to this hormone. There are several genes responsible for the condition and they can be inherited from either the mother, father, or both. This hormone is made from Testosterone under the action of the enzyme, 5-alpha reductase. Dihydrotestosterone latches onto the receptors in the hair follicle and causes a decreased anagen (hair growth) along with reduction in the size of the hair follicle. The hairs become progressively thinner and more vellus-like.
Stages of Male Pattern Hair Loss
There are several stages of Male Pattern Hair Loss. The main staging system used is the Norwood Hamilton Scale for Hair Loss in men.
Which stage do you fall under?
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