Contraceptive Sperm Zap in the Works
Sound waves in sensitive area cut sperm production
By Rob Quinn, Newser Staff
Posted Jan 30, 2012 4:13 AM CST
"It's a nice idea, but a lot more work is needed," a fertility expert said.   (Shutterstock)

(Newser) – Researchers say they have found what could be a cheap, reliable, and long-lasting form of male birth control, although it involves zapping the testicles with ultrasound. A study on rats found that sound waves slowed sperm production to levels that would cause infertility in humans, making ultrasound a "promising candidate" for contraception, the BBC reports.

The researchers, who won a grant from the Bill and Melinda Gates Foundation, found that two 15-minute zaps delivered two days apart yielded the most effective results. They plan further studies to determine how long the contraceptive effect lasts—and to make sure it is reversible. The concept was first proposed in the '70s, when cancer patients due to have their testicles removed underwent the treatment and reported no pain, only a "gentle feeling of warmth."

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Showing 3 of 11 comments
Feb 1, 2012 2:18 AM CST
Maybe you ladies should associate with a better class of people. I daresay the quality of an average man and an average woman is a perfect match, by definition.
Jan 31, 2012 8:42 AM CST
The truth is that men feel no responsibility to prevent pregnancies. They believe it's the woman's job to take birth control. I say spay and neuter all of them.
Jan 30, 2012 11:33 AM CST
For a little while, in the late 70's?, there was hope for a male contraceptive. I asked many guys, hypothetically, if they would take the pill. EVERY ONE of them said "NO WAY am I putting any chemical into my body that changes me 'down there!'" I pointed out that they drank alcohol and put lots of harmful stuff in their body. They just got sullen. I pointed out that women do it every day with BC pills, and perhaps its was time to take their turn. They DIDN'T CARE. But they did get testy and defiant, declaring it a "woman's job." I would like to think that men today are different. But I am not hopeful.