Reversible inhibition of sperm under guidance (RISUG)

RISUG, or Reversible Inhibition of Sperm Under Guidance, is a form of male contraception that involves injecting a safe polymer gel into the vas deferens—the tubes carrying sperm from the testicles. This gel damages or blocks the sperm as they pass through, preventing conception. Unlike traditional vasectomy, RISUG is reversible; a special solution can be injected later to dissolve the gel, restoring fertility. It's a minimally invasive, long-lasting method that offers a permanent or reversible option for male birth control, providing an effective alternative to other contraceptive methods.