On the mild end scalp eczema/seborrheic dermatitis/scalp psoriasis. Generally you'll know if you have one of these, they'll produce symptoms like itchy dry red skin, flaky skin aka dandruff. They are pretty common in the general population and having them doesn't mean you shouldn't or can't get a hair transplant, but you do want to have them well under control before the surgery and to optimize healing in the important days after. Often guys can manage them with over-the-counter medicated shampo