Some women might say this is long overdue... birth control for men.
Australian scientists say they have succeeded in developing the first injectable male contraceptive that has proven to be 100% effective. The study done by Sydney's Anzac Research Institute involved 55 men.
All were given injections combining the male hormones testosterone and progesterone for over a year. It was a small study but researchers say the end result is huge.
Researcher David Handelsman says that there were no pregnancies at all in the study and while the number is still limited to 55, it's a good result. So far, the studies show this injection is able to switch off sperm production.
Previous attempts to develop a male contraceptive have turned on other problems like mood swings and a lower sex drive. But that's not the case this time. More study is needed before this can be available as an option for men.