Dr. Walter Unger is a board certified dermatologist in both Canada and the USA. He trained in dermatology in London, England, Philadelphia and Toronto. He was one of the first physicians to limit his private practice entirely to hair transplantation and began a career of not only practicing it in Toronto and New York but also teaching it. For many years, Dr. Unger has been selected by his peers to be included in the database of “ Best Doctors” (Canada) and in Castle Connolly’s “Top Doctors: New York Metro Area”. He has trained physicians from various countries throughout the world including most European countries, nearly all Middle Eastern ones, India, China, Korea, and Japan, as well as many doctors from Canada and the USA. Three of them, Dr. Robin Unger, Dr. Carlos Wesley and Dr. Mark Unger are in private practice with him in New York and Toronto, respectively.
Hair Transplantation depends on the now well-established principle that transplanted hair follicles (roots moved from their original location to another area) will behave as they did in their original site. For example, even in the most advanced cases of common Male Pattern Baldness (MPB), a horseshoe-shaped fringe of hair persists. Hair follicles moved from this hair-bearing fringe (the donor area) to a bald or balding area on the same patient's scalp (the recipient area), will take root and grow. Continuing hair growth in such transplants has been observed since 1958, and it is believed that the hairs will continue to grow for the individual's lifetime - provided that it would have done so at its original site.
Q: What is a reasonable long-term hair transplant goal for a man with an average-sized area of Male Pattern Baldness (or who is destined to develop an average-sized area)?
A: In the long term, the answer is of course the same, whether someone is already bald or is only destined to develop an average-sized area of Male Pattern Baldness (MPB). However, let’s begin with a definition of “average”. Figure 12 shows the “types” or degrees of MPB as defined by Drs. Hamilton and Norwood. While their schematic drawings don't cover all the variations of MPB, they are by far the commonest way that doctors define the severity of MPB. For a large majority of men Type V or Type VI MPB is what will likely develop over time, and so we will use Type V to Type VI as the "average".