This insightful information was posted on our hair restoration forum by Dr. Alan Feller of Great Neck, NY who is a member of the Coalition of Independent Hair Restoration Physicians.
Fortunately most hair transplant hair does in fact stay for “life”. However, there is a small percentage of the population that continues to lose hair in the donor area as they progress in age. It then stands to reason that such people will lose the hair when it’s transplanted. Fortunately this is not common.
Another rare variant are patients who’ve had a successful hair restoration procedure and enjoyed a couple of years of thick hair growth. Then seemingly out of nowhere the transplanted hair begins to thin. This has happened with at least 2 of my patients in the past that I know of. In this case the best hair loss treatment is to implant more hair to make up for the volume difference.
One of my patients who posts on this hair loss forum was an excellent example of this phenomenon. We did 2 hair transplants on him that looked excellent for almost 3 years. Then, the transplanted hair miniaturized or thinned out. The way we treated it was by packing in more hair between the existing transplanted hairs. That did the trick and his final result was excellent. I’ll dig up the links to his hair transplant photos and post them on the hair loss forum.