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Hair transplantation is a procedure where hair follicles are surgically removed from the back of the scalp and transplanted to the balding area. The follicles at the back of the head are genetically programmed to be resistant to balding and they will remain so after the transplantation. The two techniques that are commonly used these days are follicular unit transplantation and follicular unit extraction. The major difference between these two basic methods is in harvesting grafts. The follicular unit transplantation (FUT) is an older technique, often called strip technique, where a thin donor strip is extracted from the back of the scalp. The opening is then sewn closed. The donor strip is placed under a series of special dissecting microscopes, where the individual follicular units, of one to four hairs, are carefully dissected into tiny grafts. Tiny incisions are then made in the bald area for inserting the grafts into. This method leaves patients with a horizontal scar at the back of their head that is visible if their hair is cut too short. Read more about the most advanced hair transplantation techniques.