The erections last between 40 and 60 minutes and most men report no adverse side effects. In a small percentage of men, scar tissue may form at the site of the injection. Because having an implant will destroy the natural erection reflex, it is important to use this option only when erections are unlikely to improve on their own. The rod can be bent up into an erection, or down into a relaxed position. The implant procedure is simple and there is little risk of infection or other complications.
Inflatable implants are more complicated.
They are made up of a small reservoir, two cylinders on either side of the penis, and a pump that transfers fluid into the cylinders to create an erection. After sex, a valve releases the liquid back into the reservoir. There are several models of inflatable implants that range from simple to more complex. For example, you may wish to try the vacuum device first, and then try injection therapy or implant if this proves unsatisfactory. Remember that even if you find a treatment that works for you, your erections will probably not feel the way it did before.