While some patients are tremendous candidates and others not candidates at all, there are many patients within that spectrum. This 35-year-old male
had a permanent "safe donor area" that was limited to the back of his head (the area just behind his ears was too thin to harvest because and it did not likely include permanent hair).
A video montage
of the procedure can be viewed here
Despite his limited donor area (resulting in 1897 FU), he had enough to frame his face and lightly cover his frontal half (including areas of future loss). This would leave a patch of thinning in his crown that looks natural. Later in life, if he choses, he can return to address that area with another session. However, harvesting too many grafts in his case would likely produce a wider scar than his limited donor area could cover.
He returned at 9 months for follow-up pics and a smile on his face.