What are the advantages and disadvantages of leaving only one linear donor area scar (regardless of the number of sessions)?
There are several advantages: A) As men with MPB get older, the balding process gradually invades the “permanent” donor rim hair from both its highest and lowest margins, respectively from the obviously balding area and the nape of the neck. Whether or not the “invaded” area eventually goes bald or not (you may die before it does) it will nearly always lose some of its original hair. As I mention elsewhere, not all the rim hair is permanent. The place that will most likely thin out the least over time is the middle of the thickest zone of hair in your rim—that is also the most distant from the rim hair margins. The first donor strip should therefore always be taken from this most permanent zone. Subsequent donor strips should also be harvested from this area for the same reason. That means the scar from any prior session(s) should ideally be somewhere within any subsequent strips—again for hair longevity reasons. It is more difficult and time-consuming to prepare FU grafts from the are
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