What causes baldness?
Most male baldness is the result of an inherited characteristic in certain hair follicles. This leads to the follicles becoming sensitive to the presence of scalp hormone dihydrotestosterone. In the years after puberty, these follicles become weaker and die prematurely. The gene causing this problem may be inherited from either side of the family, but certain other factors may retard or speed up the effects of this gene. Sometimes, scalp diseases may also lead to hair loss.