Does DUPA first appear on the back and sides of the head?

No, Diffuse Unpatterned Alopecia (DUPA) is a condition that covers the entire scalp including the donor area (back and sides of the head). Because it is diffuse, the use of donor hair that is impacted for hair transplants causes the surgery to be very disappointing, if not a relative failure. For this reason, it must be diagnosed PRIOR to having a hair transplant. I have seen too many DUPA patients that had hair transplants and they looked worse after the hair transplants because of the poor donor area recovery and often acceleration of the hair loss elsewhere on the scalp.