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Optimizing Intraoperative Hemostasis in Hair Transplantation: A Follicle-Based Tumescent Infiltration Approach.

Ümit Akpınar1, Mehmet S Çelik2

  • 1Private Dermatology Practice, Ankara, Turkey.

Dermatologic Surgery : Official Publication for American Society for Dermatologic Surgery [Et Al.]
|April 16, 2026
PubMed
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Optimal tumescent infiltration for hair transplantation involves targeting 50% of hair follicle length. This depth significantly reduces intraoperative bleeding during recipient site creation, enhancing surgical precision.

Area of Science:

  • Hair transplantation surgery
  • Dermatologic surgery
  • Surgical hemostasis

Background:

  • Effective intraoperative bleeding control is crucial for precision and graft success in hair transplantation.
  • Tumescent infiltration is standard for managing bleeding, but optimal depth remains undefined.

Purpose of the Study:

  • To evaluate the impact of varying tumescent infiltration depths, based on hair follicle length, on intraoperative bleeding.
  • To determine the ideal tumescent infiltration depth for minimizing bleeding during recipient site creation in hair transplantation.

Main Methods:

  • A retrospective study involving 53 male patients undergoing follicular unit excision hair transplantation.
  • Tumescent solution was infiltrated at 30%, 50%, and 70% of hair follicle length in standardized areas.

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  • Intraoperative bleeding was assessed using a surgeon-rated scale and analyzed with a linear mixed-effects model.

    • Main Results:

    • Tumescent infiltration depth significantly influenced bleeding scores (p < .001).
    • The 50% follicle length infiltration depth yielded the lowest mean bleeding score (3.21), significantly lower than 30% (3.77) and 70% (4.28) depths (p < .001).

    Conclusions:

    • A tumescent infiltration strategy targeting approximately 50% of hair follicle length optimizes intraoperative hemostasis in hair transplantation.
    • This anatomically guided approach enhances surgical precision and bleeding control, potentially allowing for reduced epinephrine concentrations.