Nonprofit Aims to Reverse Circumcision With Lab-Grown Tissue

A California nonprofit is working to give men a choice they've never had before: the ability to fully reverse circumcision.

Foregen, a crowdfunded organization started in 2010 by Italian artist Vincenzo Aiello, is developing bio-engineered foreskin using advanced tissue engineering. After years of setbacks and relocations, the team expects to begin human clinical trials soon.

The process sounds like science fiction but relies on established medical techniques. Researchers take donated foreskin tissue from cadavers and remove all the cells, leaving behind a natural scaffold. Chief Science Officer William Musa calls it "cellular eviction."

That empty scaffold, nicknamed "ghost tissue," is then seeded with the patient's own stem cells. The cells grow back into the structure, creating tissue that's genetically matched to the patient. Surgeons would then attach the regenerated foreskin.

The challenge is stripping just enough cells to avoid rejection while keeping the structure intact. Foregen's clinical team at Comenius University in Bratislava, Slovakia, is now testing the best methods to help cells regrow, including using a bioreactor to speed up the process.

The journey hasn't been smooth. War in Ukraine disrupted their tissue supply chain. The COVID-19 pandemic halted operations in Italy. Three key leaders left in 2023 to start a competing company focused on 3D bioprinted solutions.

Current leadership moved operations from Italy to Slovakia in 2024 to overcome regulatory hurdles and find better surgical expertise. They raised $100,000 for preclinical work and partnered with Dr. Stanislav Žiaran, whose lab provides the equipment they need.

Some donors in online communities express frustration at the timeline. Foregen has been discussing human trials since 2010, and none have happened yet. Critics say the organization overpromises on delivery speed.

Why This Inspires

Behind the technical challenges is a deeply personal mission. Around 1.5 billion men worldwide are circumcised, and a passionate community has supported Foregen entirely through donations for 15 years. The skeleton crew of volunteers and contractors has kept the vision alive through wars, pandemics, and leadership changes.

Modern foreskin restoration currently involves surgery or lengthy stretching techniques that don't fully replicate natural anatomy. What Foregen offers is different: a biological solution that could restore both form and function using the body's own healing abilities.

The organization operates as a registered 501(c)(3) with complete transparency about their challenges. They've tried for research grants and continue pursuing new funding opportunities. Their honesty about setbacks, while frustrating to some supporters, reflects genuine scientific work rather than empty promises.

If successful, Foregen would solve a problem that dates back to ancient Rome, where physician Celsus first documented restoration techniques around 25 CE. The difference now is modern tissue engineering that could make reversal truly complete.

The team knows scaling will require innovation, possibly 3D bioprinting, if even a fraction of circumcised men seek the procedure. For now, they're focused on proving the concept works safely in humans.