There are many causes for baldness and androgenetic alopecia is the most common. Discover all the contours of this condition.
Androgenetic alopecia is one of several causes of baldness and the more common one. It is one that cares more who suffers from it, since it means permanent baldness, which affects only the scalp.
This type of baldness is an inherited genetic alteration, naturally occurring due to a substance called DHT, and despite reaching essentially the male population, androgenetic alopecia may also occur in women.
Androgenetic Alopecia is characterized by progressive and localized loss of hair. In men, it can start to manifest around 20 years and usually happens in the “crown”, in the frontal and top areas, rather than the posterior and lateral areas.
When it occurs in women, this type of alopecia starts, usually, later and with a less noticeable shed of hair from the front area of the scalp.
In the affected areas, the follicular structure begins to deteriorate and new hairs gets weaker and thinner than normal hair until the hair follicles cease definitively to produce them. When hair loss starts, the duration of hair resting phase, the telogen phase, responsible for the increase of loss, and the duration of the hair growth, the anagen phase, critical for a full and healthy hair, decreases.
A healthy hair has a natural balance between the anagen, catagen and telogen phases. When some factor interferes in this natural balance, hair follicles goes prematurely in telogen phase, making hair fall a lot faster than it can grow.