When impotence patients are able to have normal erection after treatment and are able to complete coitus, they are generally considered to have recovered from their condition. Impotence is usually due to psychological stress, low androgen levels in the body, vascular lesions and other factors that cause the penis can not be normally erected, or the duration of erection is too short, the penis can not be inserted into the vagina to complete sexual intercourse. Impotence patients can be treated with drugs such as sildenafil citrate tablets or surgical methods under the guidance of doctors. Generally after active and effective treatment, the penis can be able to normal erection, and can complete the coitus, belong to the disease has been recovered phenomenon. Once the impotence of men, it is recommended to go to the hospital for examination in time, to avoid delaying the condition, resulting in adverse consequences. During the treatment period, attention should be paid to keep the local clean, to avoid infection, affecting the recovery of the condition. Remember to self-medication.