As many as 15 percent of men have varicoceles, masses of enlarged and dilated veins in the testicles. There is new evidence that varicoceles, long known to be a cause of male infertility, interfere ...

The testicles need a supply of fresh blood to function correctly. It’s not difficult for the heart to pump blood into the testicles. The problem is how to get the blood in the testicles back to the ...

MUNICH — Even a small varicocele can significantly affect sperm quality and fertility in an otherwise healthy young man, according to a population-based study of more than 7000 army recruits in six ...

Dear Dr. Roach: I am a 76-year-old male who is in good health and doesn’t take any medications. I ride my bike 40 miles a week, play golf four days a week and go to the gym every other day. About six ...

Gay is pain free for the first time in more than two years. At 30, the American sprinter is trying to resurrect his career after hip, groin and hamstring injuries. [File, Standard] Groin discomfort is ...