ABSTRACT
An important issue in hair transplantation is donor density. Success of surgery is largely dependent on this factor. Donor density is not only determined by the number of grafts, but also by the number of hairs per graft and by the quality or caliber of each hair. This greatly affects the results of hair transplantation.
Our study of 70 men undergoing hair transplantation revealed that East and Southeast Asians had an average of 61.1 FU/cm2 (111.2 hairs/cm2); of these, 1-hair grafts accounted for 32.5%, 2-hair grafts for 54.2%, and 3-hair grafts for 13.2%, but no 4-hair grafts were noted. Miniaturized hairs for this population had an average of 7.8 hairs/cm2 (7%). A small proportion of West Asians revealed an average density of 63.6 FU/cm2 (126.8 hairs/cm2); of these, 1-hair grafts accounted for 20.7%, 2-hair grafts for 59%, 3-hair grafts for 19.3% and 4-hair grafts for 0.8%. Miniaturized hairs for West Asians were highest at 17.8 hairs/cm2 (14%). Likewise, a small number of South Asians were also noted to have an average density of 63.5 FU/cm2 (126.8 hairs/cm2). The proportion of 1-hair grafts was 19%; 2-hair grafts, 61.2%; 3-hair grafts, 19.16%; and 4-hair grafts, 0.5%. Miniaturized hairs were noted at 10.9 hairs/cm2 (8.5%).
- Copyright © 2017 by The International Society of Hair Restoration Surgery
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