hair in some individuals. Some of the causes are low testosterone levels, skin problems like psoriasis or eczema, alopecia and people of some ethnic origins. My sincere advice would be to consult a dermatologist and get an evaluation done. Treatment is diagnosis specific. There are many medicines like Minoxidil and Rogaine available but they should be used only after a dermatologist’s prescription. Ultimately hair transplantation can also be considered but the decisions should be made by your dermatologist.
It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your dermatologist. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.