Follicular Unit Extraction is more recent development. It removes follicles directly from head and body surfaces. And unlike strip surgery it does not leave a linear scar. Also, hair can be taken from anywhere on the head, rather than just the lower regions.
Strip surgery versus FUE hair transplant methods
And here at Dermhair Clinic, we have developed a specialized area of FUE known as Advanced Follicular Unit Extraction for harvesting body hair as well as for consistent extraction of tightly curled Afro-textured haired individuals. Body hair transplant is particularly useful for patients who require a much greater number of grafts, beyond what is available on their head. Examples include severely bald individuals (Norwoods 6-7) and patients who have already had prior hair surgeries which used many of their head donor follicles.
In considering Strip surgery versus FUE hair transplant methods, it should be noted that each hair transplant method can be viewed in terms of the specific benefits they offer to address patient objectives and issues of concern.
This video captures the thinking well:
https://www.youtube.com/watch?v=kZNqNIGg3a4&list=PLHNSPUQnYInL-icJplGtG3L3XKIlx1M-K&index=98