Editing Cock ring (section)

==Risks==
Vendors of cock rings and medical sources indicate that cock rings are not to be worn for more than about 30 minutes. Falling asleep or using [[Prohibition (drugs)|illicit drugs]] at the same time is very dangerous. The first sign of pending problems is when the penis starts to become numb, painful, or cold. As soon as this happens, the cock ring must be removed.<ref>[http://www.goaskalice.columbia.edu/2318.html Considering cock rings] {{webarchive|url=https://web.archive.org/web/20100311002358/http://www.goaskalice.columbia.edu/2318.html |date=2010-03-11 }} Retrieved on 2010-03-03</ref>

===Medical issues===
Cock rings that are too tight, or worn for too long can be dangerous: this may cause [[priapism]], a [[medical emergency]] that, if not treated promptly, can result in severe and permanent damage, including penile [[gangrene]] that can result in the destruction and possible [[penectomy|amputation of the penis]]. Rings for erectile dysfunction are invariably supplied with the instruction that they should not be left on for more than thirty minutes. Falling asleep with a ring on is a particular danger. This may lead to temporary or permanent nerve damage. Numbness in the [[glans penis]], penis becoming cold or penis becoming white may be signs that a cock ring has been worn for too long and medical advice should be sought.

Cock rings must not be used without medical advice by those who have cardiovascular problems or who take blood-thinning medication.{{Citation needed|date=March 2015}}