There are many possible physical causes, like high blood pressure, diabetes, thyroid glans disease, multiples sclerosis, Parkinson’s, cancer and kidney disease. The treatment options are increasing. Some examples:
Penile prosthesis. A prosthesis is placed in the penis, keeping it rigid. It bends down when not in use and can be raised for intercourse. There is also an inflatable type, with a pump inside the scrotum alongside one of the testicles.
A penis pump. This consists of a clear plastic tube into which the penis is inserted. With a pump a vacuum is created, drawing blood into the penis. A constriction band is placed at the base of the penis, keeping the blood trapped inside so it will stay erect.
Intraurethral therapy. A medication called alprostadil is inserted into the opening of the penis with a small applicator. Within ten minutes an erection may develop, lasting a few minutes to up to half an hour.
Intracavernous injections. The guy injects medication into the shaft of the penis. It works within minutes and the penis stays erect from several minutes to several hours.
Medicins, like viagra, can help men to get an erection.