In the early stages, receding hairlines and gradual thinning of the hair on the top of the head become apparent. This is caused by a genetic hypersensitivity of the hair follicles to DHT. The hair becomes finer, shorter, and falls out more quickly. In the early stages, the follicles are often still active, so the use of appropriate treatments is advisable. Seeking advice early on increases the chance of slowing down the progression.