Will Hair Grow Back After My Car Accident?

i was in a car crash 4 months ago and got a bleed to the brain that needed to be operated on..im just wondering seen as im only 18 wil hair ever grow back on the scar if not is there anyding else i could do?

Incisions from brain surgery often produce scars because they widen slightly (about 1/4 inch on many people). If they are located in the hair baring scalp, then these scars are easily treated with hair transplants, quite successfully. The hair will not grow back on its own in the scar.