Q: Is it safe to implant 6,000 grafts in 2 days with an FUE procedure? — L.P. ~ Port Washington, N.Y.

A: A 6,000-graft procedure would be a very large hair transplant. Transplanting this many grafts at once would necessitate grafts being placed very close together. In this situation, the blood supply may not be adequate to support the growth of the newly transplanted grafts.

Another reason for concern is that when harvesting, FUE yields about 20 grafts/cm2. A 6,000-graft procedure would require 300 cm2. Since the donor area is about 30 cm long, this would require a donor height of 10 cm, clearly extending beyond the permanent zone of the scalp of most patients.

• Read more about large sessions
• See before and after photos of Bernstein Medical hair transplant patients