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Efficacy and Safety of Penile Girth Enhancement by Autologous Fat Injection for Patients with Thin Penises

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This study aimed to investigate the efficacy and safety of autologous fat injection (AFI) for penile girth enhancement (PGE) in patients with thin penises.


This study investigated 52 patients with a small penile circumference who underwent AFI for PGE and were followed up for more than 6 months. The patients whose proximal one third (G1) and distal one third of their penis (G2) had a mean thickness of 7.4 cm or less were selected as subjects. After fat suction using a liposuction device, fat was evenly injected into the superficial, middle, and deep layers of the Colles’ fascia. Patient age and operative time were analyzed. The G1, G2, flaccid (L1), stretched length (L2), and five-item version of the International Index of Erectile Function-5 (IIEF-5) before and 6 months after the surgery were compared. Postoperative complications were surveyed.


The patient mean age was 42.15 years (range, 22–56) years, and the operative time was 44.44 min (range, 37–49 min). The injected fat volume was 38.54 ml (range, 25–49 ml). Preoperatively, G1 was 7.01 ± 0.39 cm, and G2 was 7.06 ± 0.37 cm. Postoperatively, G1 was 9.29 ± 0.82 cm (P < 0.001), and G2 was 9.34 ± 0.86 (P < 0.001) cm 6 months after the surgery. The difference between L1 and L2 before and after the surgery was not significant. The IIEF-5 was 19.10 ± 3.22 before the surgery and 19.90 ± 3.05 after the surgery (P = 0.001). The only complication was nodular fat observed in one case (1.92 %).


The use of AFI for PGE in men with thin penises was effective and safe without major complications.

Level of Evidence III

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Correspondence to Seung Wook Lee.

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Kang, D.H., Chung, J.H., Kim, Y.J. et al. Efficacy and Safety of Penile Girth Enhancement by Autologous Fat Injection for Patients with Thin Penises. Aesth Plast Surg 36, 813–818 (2012).

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