The first hair transplants were performed during the Second World War on Japanese patients suffering from burns. Although all records were lost in the turmoil during and after the war, research into hair transplantation really got going just after the war. It was soon discovered that transplanted donor hair would carry on growing, not falling out. However, researchers soon came up against the greatest challenge - how to make hair transplants look natural. The search for improved techniques and more natural results got underway.
Major progress and improvements have been made in the field of hair transplantation since the early 1990's. Grafts, originally quite big and round, have become increasingly smaller (we now refer to mini- and micro-grafts), leading to hair root groups - follicular units (FU) - being seen as anatomical structures. Over the past few years, the use of magnifying glasses and microscopes has enabled the anatomical structures of the follicular units to be even better observed, allowing even finer and more precise techniques. This in turn has allowed even denser hair transplants, making transplanted hair look even more natural.
The microscopic dissection of follicular units (microscopic FUT technique) represented a significant step forward, since it was the first transplant technique allowing a natural hair pattern. In fact, it is only limited by the number of donor hairs. Expertly extracted and transplanted follicular units are hardly, if at all, distinguishable from natural hair.