What a good transection rate looks like

What does 'transection' mean in an FUE hair transplant?

Transection happens when the punch cuts through a follicle instead of around it, damaging it so the graft may fail to grow. Damage to the bulge region, higher up where the regenerative cells sit, is more harmful than damage to the bulb at the base — a graft can look intact yet still be compromised.

What transection rate is considered acceptable in FUE?

Experienced surgeons aim for low single-digit percentages, and figures in that region are what good clinics quote; higher rates are linked to difficult hair types, inexperienced operators, or punches poorly matched to the hair. There is no standardised measurement method, and rates are self-reported, so a quoted figure is a claim, not an audited statistic.

What causes a high transection rate during FUE?

A high transection rate is typically driven by a punch diameter too small for the hair, the wrong punch angle relative to the follicle's direction, blunt punches used late in a long session, curly or afro-textured hair where the follicle curves under the skin, operator inexperience, and rushing to reach a high graft count.

• Punch diameter too small for the hair
• Wrong punch angle relative to the follicle's direction
• Blunt punches late in a long session
• Curly or afro-textured hair, where the follicle curves under the skin
• Operator inexperience
• Rushing to hit a high graft count

What should you ask a clinic about their FUE transection rate?

Ask what the clinic's typical transection rate is, how it is measured, and whether a test extraction is done before committing to a full session. A clinic that measures and can describe its method is thinking about yield; one that answers with only a number and no method is quoting marketing.

This is one of the questions on our clinic red flags checklist.

Sources

1. Parsley WM, Perez-Meza D. Review of factors affecting the growth and survival of follicular grafts. Journal of Cutaneous and Aesthetic Surgery, 2010;3(2). jcasonline.com

This article summarises published research and standard clinical practice. It is general educational information, not medical advice, and it does not replace the instructions your own surgical team gives you. Where their guidance differs from anything here, follow theirs.