When doctors use hair transplant procedures with FUT, they do not have to use quite as large of a donor site. The follicular units are small and they can be separated from tissue that has no hair, under the microscope. That way, only the tissue that grows hair is transplanted. It is a much more efficient procedure in that way. If at all possible, you need to be able to visit with patients the doctor has treated so they can show you the results in person. You are not asking too much - it is a major commitment you are making. 4. If your doctor says to try a few hair transplant grafts and then decide, run. This is never a good idea. This would settle the issue of whether hair transplant would work by those methods. After their trials, they got the answer: the hair follicles themselves made the difference in the life of the hair and not where they were placed on the scalp. They termed this phenomenon Donor Dominance. Hair transplant surgery was on the horizon. 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. To get 25% of that, you would need 156 follicular units per square inch. It is discouraging, but do not give up hope until you investigate to find out if you are a possible candidate. You may be surprised. The most important thing to remember is that you need hair for the hair transplant to your balding areas. The hair has to come from somewhere on your body. Wherever you take the hair from is called the donor site. Many people who think about having hair transplant surgery wonder if the procedure is painful. Often people have sensitive scalps and the thought of someone making cuts there seems hard to think about for these people. There is disagreement as to whether hair transplant surgery is painful, though. Some say that hair transplant surgery is similar to a visit to the dentist.