Himplant — Penile Shaft Augmentation Implant
Himplant is a silicone elastomer shaft implant placed in the subcutaneous tissue of the penis to increase girth for cosmetic augmentation. It is marketed as a medically-placed alternative to free silicone injection and penile pearls.
Device
- Preformed silicone elastomer sleeve
- Placed in the dartos plane around the penile shaft (not within the corpora)
- Multiple sizes
- FDA clearance has been limited; the device has been marketed with varying regulatory positioning
Why It's Included Here
Himplant is cosmetic augmentation, not reconstruction — but patients with Himplant present to the reconstructive urologist with complications that are well within reconstructive practice:[1]
- Device extrusion through the skin
- Infection and abscess
- Device migration or asymmetry
- Vascular and sensory compromise of the shaft skin
- Dissatisfaction requiring removal
Removal
Explantation through an inguinoscrotal or coronal degloving incision is generally straightforward for clean, uninfected devices. Infected or eroded implants may require staged debridement + scar-tissue management + subsequent cosmetic revision.
Contrast with Corporal Implants
| Feature | IPP | Himplant | Free silicone |
|---|---|---|---|
| Intent | Erectile function | Cosmetic girth | Cosmetic girth |
| Location | Intracorporal | Subcutaneous shaft | Subcutaneous / anywhere |
| FDA-cleared | Yes | Limited | No |
| Reversible | Yes (explant) | Yes | Very difficult |
| Complications | Mechanical, infection | Extrusion, infection | Granulomas, migration |
References
1. Chung AD, Aswani Y, Tsai LL. Imaging Review of Male Genitourinary Devices and Augmentations. European Journal of Radiology. 2026;199:112829. doi:10.1016/j.ejrad.2026.112829
See also: Penile Pearls, Free Silicone Injection, Inflatable Penile Prosthesis.