What causes black hair on chin area?
Black hair appear due to testosterone. Laser could be done.
Welcome and thanks for posting your query to the forum.
I can understand your concern for the back hair on your chin area.
After analyzing your query let me guide you that the most common cause of black hair on chain area is due to hormones. In all of us there is the presence of hormones. Specifically it is testosterone which causes coarsening and darkening of the fine hairs. In females it is prest in negligible amount so that it causes coarse hair only over axilla and genital area.
In certain females there could be more testosterone or more sensitivity of the hair over facial area causing dark back hairs.
It requires a proper analysis by a dermatologist to give a medical treatment. For immediate management I prefer to do LASER hair reduction. You can take guidance from a dermatologist.
I hope this helps.
Dr Sanjay Kanodia
MD - Dermatology