Then, you can use this number to figure up the grafts needed. Based on the fact that the average Caucasian male has a density of 2 hairs per millimeter, it can be assumed that the average density of hair is 1250 hairs per square inch. Figuring at an average of 2 hairs per follicular unit, it would take 625 follicular units per square inch. This cuts down considerably on the amount of pain experienced. The procedure is minimally invasive now, so that no more of the scalp is disturbed than is necessary. Finally, having a hair transplant with an experienced and skilled surgeon is an important key to having a less painful surgery. A doctor who knows the best way to do the procedure will cause you less pain an produce a better result for you into the bargain. A doctor who has done many successful hair transplant procedures will have a list of people willing to talk about their experience. You can call each one and ask about how the procedure went for them. Be aware that not all hair transplant doctors are scrupulous businesspeople. Many will try to fool you into believing they are more experienced than they are. He will listen to your questions about hair transplant and provide intelligent answers. He will also try to find out what your goals are to see if they are realistic. 6. Keep it realistic. If the doctor says the hair transplant will cost an exorbitant amount of time or money, be wary. You should have a basic idea of the going rates before you make this decision. As long as the surgeon knows what she is doing, the scars are a minor consideration. Another aspect of scarring is when doctors go in for multiple hair transplant surgeries. A new strip of donor tissue has to be taken each time to supply the grafts for the new transplant. It would seem that this would lead to a large number of scars on the back and sides of the head. Then, you will be given instructions to make your hair transplant surgery go better. Some of the items on the list might seem like the doctor is interfering with your life, but they are truly necessary if you are to get the best outcome. You will be told to quit smoking, at least until after you have healed from the surgery, if you are a smoker before the hair transplant procedure.