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Free Silicone Injection

Free liquid silicone injected into genital soft tissue can cause permanent local injury and serious systemic complications. The FDA has not approved injectable silicone for cosmetic body enhancement.[1][2]

Recognition and assessment​

Ask about the injected substance, site, amount if known, timing, previous treatment and current symptoms. The material may be uncertain or mixed with other substances. Document the patient's account without assumptions about the setting or motivation.

  • Local problems: persistent nodules or granulomas, pain, induration, discoloration, ulceration, infection and scarring. Migration can extend the affected area beyond the original injection site.[1][3]
  • Acute systemic symptoms: breathlessness, chest pain or new neurologic symptoms after injection warrant emergency assessment; silicone embolism can cause severe injury or death.[1]
  • Reconstructive assessment: define skin viability, depth and extent of involvement, infection and effects on urinary or sexual function. Imaging can help characterize implanted materials and complications; choose it to answer the clinical question.[4]

Treatment of complications​

Treat acute infection or tissue-threatening complications promptly. Persistent inflammation requires distinction between infection, foreign-body reaction and other pathology; biopsy or microbiological sampling may be appropriate when the diagnosis is uncertain.

For localized symptomatic disease, excision may be feasible. Diffuse infiltration can make complete removal impossible and can leave substantial defects. Excision, debulking, skin grafts or flaps should be selected according to the affected tissue and the resulting defect, with staged care when needed. There is no universal requirement for a particular flap or for radical excision in every patient.[2][3]

Medical treatment is supported by limited evidence. A 2023 systematic review included 93 studies, of which 89 were case reports or case series. It found heterogeneous treatments and outcome definitions, variable follow-up and no patient-reported outcome studies. Reports of minocycline or corticosteroid-based treatment do not establish a standard curative regimen or superiority to surgery. Specialist-directed anti-inflammatory treatment should follow assessment for infection; involve dermatology, infectious diseases or other specialists according to the presentation.[3]

Distinguish the material and indication​

An injection of free silicone oil is different from a manufactured implant. Penile prostheses and cosmetic subcutaneous implants have distinct designs, indications and complications; their use does not establish the safety of free silicone injection. Conversely, being an intact medical device does not mean an implant cannot become infected, erode or move.[4] See the separate Himplant and penile-prosthesis pages.

Counsel respectfully about the possibility of incomplete removal, further procedures and persistent symptoms. Base blood-borne infection testing on the exposure history and ordinary screening indications, rather than assuming exposure from a body modification alone.

References​

1. US Food and Drug Administration. FDA warns about illegal use of injectable silicone for body contouring and associated health risks. 2017. FDA safety announcement.

2. US Food and Drug Administration. Dermal filler do's and don'ts for wrinkles, lips, and more. FDA consumer guidance.

3. Mustin DE, Barrett DL, Gangal A, White MS, Yeung H. Management of silicone granuloma: a systematic review. JAAD International. 2023;11:41–42. doi:10.1016/j.jdin.2022.12.006.

4. 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, Fournier's Gangrene, Grafts in GU Reconstruction.