Since the 1950s many studies have been performed to reduce alopecia (baldness) problems. One of the first techniques used is described as follow: the surgeon removed from the nape of the neck small circles, and implanted in the bald area. In the 70s, an Argentine surgeon published a new technique called “rotation remnants”, where an extensive band of the lateral region of the hair was twirled for the frontal region, restoring the whole area. In the 80s, Dr. MUNIR CURI developed a new technique, called “fio a fio” (hair-by-hair): hair is taken from the donor area, in small grafts that contains about 3 to 5 hairs, and relocating them to a bald or thinning area with micro bistouries. With time, surgeons began to separate hair by hair with a powerful microscope, the surgery became very accurate and the hair loss was almost zero. The insertion of grafts also experienced great transformations, using special needles or laser, depending on the patient, which led to very satisfactory results. Because it has been a very successful procedure, the number of hair replacement surgery has increased generously over the last years, being the same as liposuction.