What are the side effects of using vacuum constriction devices to treat erectile dysfunction?
The penis tends to be purplish in color and can be cold or numb. Other side effects can include:
- A black and blue mark or small area of bruising on the shaft of the penis. This is usually painless and generally will resolve itself in a few days.
- A decrease in the force of ejaculation. This is not dangerous and usually does not cause pain. The semen will usually dribble out once the constriction band is removed. Generally, this does not interfere with the pleasure of a climax or orgasm.
From: Erectile Dysfunction: Vacuum Constriction Devices WebMD Medical Reference
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