Pumps use a vacuum to draw blood into the penis. This can often help people achieve or maintain an erection.
This article discusses the efficacy of penis pumps and the science behind their use.
Do penis pumps work?
Penis pumps can help people to achieve and maintain erections. Some studies show that penis pumps may help erectile dysfunction patients achieve an erection in up to 90% of cases.
How does it work?
A penis pump works by using suction to draw blood into the penis.
The blood fills the blood vessels in your penis, causing them to swell so your penis gets — temporarily — bigger and harder.
A constriction ring — better known as a cock ring — is usually placed around the base of the penis to help keep the blood in the penis and maintain the erection.
Is it safe?
Penis pumps, or vacuum erection devices, are generally safe, but they may not be right for people with certain medical conditions.
