Short answer: start with a stretchy silicone or TPR ring, and use it for no more than about 30 minutes. Pumps are an accessory rather than a treatment, and should be used cautiously.
Cock rings
A cock ring is worn at the base of the penis. By restricting blood flow back out of the penis, it can help maintain an erection and sometimes makes it feel firmer. Vibrating versions add stimulation for both partners.
- Material: stretchy silicone or TPR is the safest to start with, as it gives rather than gripping. Metal rings are rigid, so size matters more.
- Size: too tight can hurt or cut off circulation; too loose does nothing. If in doubt, choose a stretchy ring or an adjustable one.
- Time limit: remove after about 30 minutes, and sooner if you feel pain, numbness or see colour changes.
- Never use when you have drunk heavily or are asleep, and take care if you take blood-thinning medicine.
Penis pumps
A pump draws blood into the penis using suction and is used by some men for temporary firmness. Bathmate-style pumps use water; others use a bulb or pistol grip. They do not treat erectile dysfunction, and results are temporary.
- Follow the instructions, and never exceed the recommended pressure or time.
- Stop if there is pain, bruising or numbness.
- If erection problems are persistent, speak to a GP: they can be an early sign of other health conditions. See erectile dysfunction.
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Frequently asked questions
Do cock rings work?
For many men they help maintain an erection for longer. They do not create one.
How long can you wear a cock ring?
No more than about 30 minutes. Remove it at once if it hurts or you notice colour changes.
Do penis pumps increase size permanently?
There is no good evidence that they do. Effects are temporary.
Are cock rings safe?
Generally, when stretchy, correctly sized and used for a short time. Avoid if you have a circulatory problem or take blood thinners without asking a doctor.