Are Men With Vasectomies At Greater Risk For Prostate Cancer?

Posting Date: 05/06/1999

Ellen: After researching vasectomies on your Web site, I am worried.

On the National Cancer Institute's link I found a claim that vasectomies are associated with higher rates of prostate cancer.

My husband is scheduled for a vasectomy tomorrow; there's nothing like last minute research!

Dr. Dean: It's funny that you're doing the research and he's not.

Ellen: Well, he asked me to.

Dr. Dean: Ah-ha, chicken.

I can definitively say to you that vasectomies do not cause prostate cancer. He should have no fear whatsoever about that. But at one point there was research that suggested a connection.

A couple of studies did find that men with vasectomies had more prostate cancer. Of course, the National Cancer Institute was very interested in these studies, but once news goes into a database on the Internet, it can stay there forever.

Our Web site is huge. The last time I checked we had 40,000 pages, because we want to share information with you. However, keeping material updated can be a challenge.

With further searching, I think you will find that subsequent studies indicate that "detection bias" skewed the earlier reports. Here is how detection bias works.

A man getting a vasectomy will see a urologist. As part of the pre-vasectomy physical, the urologist is going to put his finger where the sun don't shine and examine the patient's prostate. Therefore, prostate cancer is going to be detected more often in men getting vasectomies than in other men. Thus, it appears that men getting vasectomies have more prostate cancer.

There is some research, that is still inconclusive, indicating that primates (monkeys) with vasectomies, may have higher cholesterol levels and greater risk factors for heart disease.

We have NOT found vasectomies to increase heart attacks in humans. Nevertheless, because primates are so close to us, the question, however minimal, lingers.

The question wouldn't stop me from having a vasectomy if I needed one. When I did need one, I didn't do it; and that's why I've got so many kids. And, of course, I'm glad I did.

I tell you in all honesty, Ellen, that when a couple wants permanent birth control, a vasectomy for a man is a much smarter way to go than for the woman to have a tubal ligation. So, I congratulate him.

Email this page  Printer Friendly Bookmark this page