Baldness is often hereditary and linked to male hormones, becoming noticeable when half the hair is lost.
Some treatments like minoxidil, finasteride, and surgery can help with hereditary hair loss.
370 citations,
September 1999 in “The New England Journal of Medicine” Finasteride and minoxidil are effective for hair loss, but continued research is needed for better treatments.
19 citations,
January 1997 in “Dermatologic Clinics” Most treatments for hair loss in 1997 were not effective for most people, and maintaining hair growth was difficult.
26 citations,
January 1994 in “McGraw-Hill eBooks” Many hair loss conditions can be treated.