What are the risk factors for Impotence?

As men age, the level of circulating testosterone decreases, which may interfere with normal erection. While a low testosterone level itself is rarely the cause of Impotence (5 percent or less), low testosterone can be an additional contributing factor in many men who have other risk factors for Impotence.

Low levels of sexual desire, lack of energy, mood disturbances and depression can all be symptoms of low testosterone. A simple blood test can determine if the testosterone level is abnormally low, and testosterone can be replaced using a number of different delivery systems (e.g., injections, skin patches, gels, pills placed under the tongue).