Each technique has been practised for many years, both can produce natural results and both have pros and cons.
A hair transplant relies on genetically strong, immune from the male pattern baldness gene, hair around the sides and back of the head being moved to an area of hair loss. Even when the hair is moved it keeps its strong genetic properties and continues to grow through your life.
Age, hair loss pattern, potential for future hair loss need to be considered, as well as the individual’s hair characteristics, hair colour, curl and coarseness. Although you can compare similar qualities a hair transplant is very personal.
Deciding on the hair transplant technique should be made on practicalities; either FUT or FUE can provide natural results, both use natural bunches of hair known as follicular units, of FU’s. Follicular units are groups of hairs how they grow across the scalp. Around the sides of the head smaller groups are found with more 1 and 2 hair units, the majority of the larger groups are situated around the back of the scalp with a higher percentage of 3 and 4 hair FU’s.
As well as the back having a higher number of hairs the physical follicular unit density is also higher compared to each side; for example the back may have a FU density of 80 FUcm² whereas the sides could drop to around 70 FUcm².
With FUT the follicular units are removed within a strip then sutured to leave a fine linear scar, hidden by the surrounding hair. The strip traditionally follows a line around the back and sides of the head, the length and width largely dependent on the number of grafts/hairs needed to complete the procedure.
FUE removes each graft individually, too many removed in an area will leave a patchy look, with a lower hair density than the surrounding areas. To avoid this, even on smaller procedure the extractions should be spread over the maximum area possible.