I am a 19 year old male. Underwent a year of chemo when I was 16-17 years old. Two years later I have hair, but it is much thinner than pre-chemo. It is very thin (bascially bald) on the crown of my head. None of my parents, aunts, uncles, grandparents are balding.

My hair is thinner and more scarce basically all over my body. Is there anything I can do to promote more hairs to fill in my head, and possibly make the hair I currently have thicker?

Thanks in advance.