ScopeMichael Eisenberg, MD, a professor of urology at Stanford Medicine. There are also higher rates of male congenital birth defects, like hypospadias, where the opening for the urethra is not at the tip of the penis, and cryptorchidism, where the testicles don't properly descend. Also, if there's granular data on lifestyle factors or environmental exposures, we could try to understand why this may be happening