New Male Birth Control Immobilizes Sperm and Completely Wears Off in a Day

Late last year, a Virginia-based startup called Contraline started the initial clinical trial of its male birth control, a hydrogel that's injected directly into mens' vas deferens (the tube that carries sperm from the testes to the urethra) to block sperm from passing. Trial participants will be monitored for the next three years, with doctors […]