Scalp picker for about 3 years, I've heard that this causes hairloss, will the hair I lost regrow?

I suggest seeing an expert to evaluate your hair loss and consider the best treatment options. There are great non-invasive options like PRP/progesterone and/or hair transplantation. See an expert. Best, Dr. Emer

picking at your scalp or pulling your hair causes damage to the hair bulb, this will lead to hair loss that is permanent. You may also have an underlying hair loss pattern causing hair loss as well. Your best bet is to see a hair restoration surgeon who can evaluate your scalp and hair, as well as provide options to you.

There are two separate entities - compulsive hair pulling or trichotillomania, and compulsive skin picking or dermatillomania. These are separate entities.Skin picking results in ulceration and destruction of the hair follicle so hair loss is permanent.Repetitive hair pulling results in reduced hair growth and eventually the affected hairs stop growing. Both can be treated by hair transplantation but this should only be considered several years after complete cessation of the compulsive habit, verified by friends and relatives, and on patients who are not on medication to control the behaviour.