If you have had an erection that has lasted more than 2 hours, you should go to the nearest emergency department for medical attention. If it’s not treated within 24 hours your penis may be permanently damaged and you might have trouble getting an erection in future. The sooner you treat it, the less risk that the penis will be damaged.
This unwanted erection may or may not be caused by sexual arousal, is usually very painful and can last for 2 hours or longer.
