Key points
- Modern hair transplantation moves follicular units — the natural groups in which hair grows — from the back and sides of the head to thinning areas.
- FUT (strip): a strip of scalp is removed and divided into grafts. It leaves one linear scar, usually hidden by hair.
- FUE: each unit is taken out individually with a tiny punch, typically 0.6–0.8 mm. There is no linear scar, but each punch leaves a small mark.
- FUE is now the most widely used technique. There is not enough evidence to say that grafts from one method survive better than the other.
What both methods have in common
Hair on the back and sides of the head is usually resistant to the hormone-driven thinning that causes male pattern baldness. A transplant moves some of it, in follicular units — the natural groups of a few hairs each — to the areas that have thinned. Both methods implant the grafts the same way. They differ in how the grafts are taken from the donor area.
FUT, the strip method
A thin strip of scalp is removed from the back of the head, the wound is closed, and the strip is divided under magnification into individual follicular units. The result is a single linear scar. With careful closure it can be fine, but it can show if the hair is worn very short.
FUE, follicular unit excision
Each follicular unit is taken out on its own with a small round punch, typically 0.6–0.8 mm across. There are no stitches and no linear scar, and recovery of the donor area is usually quicker. The trade-off is that the surgeon cannot see the root under the skin, so some follicles can be cut during extraction, and the procedure is slower. FUE usually means shaving the donor area, though unshaven variants exist.
What the evidence shows
FUE has overtaken FUT and is now the most widely used technique. Reviews describe the advantages and drawbacks of each and agree that both can give excellent results. The International Society of Hair Restoration Surgery notes that there are not adequate studies to compare the survival of grafts between the two methods, and that some poor results reflect surgical skill rather than the method itself.
How the choice is made
The surgeon looks at the density and quality of the donor hair, how many grafts are needed now and in the future, how short you wear your hair, and any earlier scars. For most patients today the answer is FUE, but not for every patient.
Worth knowing
- FUE is not scarless. The punch sites can heal as small white dots, more visible with very short hair or darker skin.
- The donor area is limited. Taking too much in one session can leave it visibly thin.
- Not every kind of hair loss is suitable for a transplant. That is decided at an examination.
Sources
- Jimenez F, Alam M, Vogel JE, Avram M. Hair transplantation: basic overview. J Am Acad Dermatol. 2021;85(4):803-814.
- Jimenez F, Vogel JE, Avram M. Hair transplantation: surgical technique. J Am Acad Dermatol. 2021;85(4):818-829.
- Konior RJ. Patient selection for follicular unit extraction versus linear strip donor harvesting. Facial Plast Surg. 2024;40(2):168-174.
- Dua A, Dua K. Follicular unit extraction hair transplant. J Cutan Aesthet Surg. 2010;3(2):76-81.
- Romera de Blas C, Vega Díez D, Ricart Vayá JM, Gómez Zubiaur A. Complications in follicular unit excision hair transplantation: current evidence and practical approaches. Front Med (Lausanne). 2026;13:1750989.
- ISHRS. Comparison between strip harvesting and follicular unit extraction: a fair and balanced view.
This summary is general information and no substitute for an examination and personal medical advice. The figures are averages from studies, not a promise of a result.