Contraception

Researchers have discovered a gene in the testicular tissue in multiple mammals, including humans. Disabling it changed the shape and function of sperm and could lead to an oral contraceptive for men that would only work while it is administered.

Male contraceptives have traditionally been limited to condoms and vasectomies. Now scientists have demonstrated a promising new method that takes the form of a pill that can be taken just before sex, greatly reducing fertility for 24 hours.

Researchers have developed a non-hormonal male contraceptive pill that disrupts a protein involved in sperm formation. Tests in mice have so far been promising, showing effective prevention of pregnancy, reversibility within weeks, and no side effects.

Although spermicides do already exist, they're still not 100-percent effective. Scientists are developing what could be a more reliable alternative, in the form of a vaginally applied solution that keeps sperm trapped within the semen.

Contraceptives like the pill may be effective, but messing with hormones has a range of unpleasant side effects. Now researchers are experimenting with a new non-hormonal contraceptive based on antibodies, which stops sperm swimming through mucus.

When it comes to contraceptives, men typically have to remember to use a condom, or get a difficult-to-reverse vasectomy. There may soon be a new option, however, in the form of injected particles that are magnetically guided to the testes.

A new breakthrough could lead to a safe, effective and reversible male contraceptive pill, as a compound from traditional Chinese medicine has been shown in tests to render mice and monkeys temporarily infertile.

Why use three separate products, when just one will do the trick? That's the thinking behind an experimental new contraceptive gel that combines a spermicide, an anti-viral agent and a libido enhancer in one formulation.

The Pill only works if you remember to take it every single day. To reduce that risk and hassle, researchers at MIT have updated their slow-release, star-shaped oral capsules to last up to four weeks, and used it to deliver contraceptive drugs.

Researchers at Yale University have identified a key molecule that helps activate sperm and guide them to the egg. This could make it a target for both infertility treatments and new contraceptive methods.

Contraceptives like the Pill are only effective if you remember to take them. In an effort to integrate into the lives of women more seamlessly, researchers at Georgia Tech have developed contraceptive patches that can be attached to jewelry.

A fascinating new study has for the first time linked a specific genetic variant with the efficacy of hormone-based birth control treatments. The research suggests birth control may be less effective in women found with this particular gene.