Impotence refers to erectile dysfunction, the causes of erectile dysfunction are mainly physiological and psychological factors, and the treatment is mainly divided into correcting the adverse factors and medication. 1. The causes of erectile dysfunction are divided into: (1) Disease factors: including somatic chronic diseases such as diabetes, hypertension, liver and renal insufficiency, etc., the use of antihypertensive drugs, tranquilizers, hormonal drugs, etc., smoking, alcoholism, overwork and other bad lifestyles. (2) Psychological factors: lack of correct sexual knowledge, excessive mental tension, fear, anxiety, etc. lead to the penis can not be normal erection or not enough to maintain an erection to meet the normal sex life. 2. The treatment of erectile dysfunction is mainly divided into: (1) Correction of adverse factors: mainly including changing the bad lifestyle and mentality, learning sexual skills and knowledge, changing the taking of drugs and so on. (2) Drug therapy: mainly includes oral medication sildenafil, tadalafil and so on. (3) Psychotherapy: through psychological counseling and other methods to improve the symptoms of erectile dysfunction. (4) Surgical treatment: Surgical treatment such as placing vacuum erection device can be used. If you have impotence, please go to the hospital as soon as possible, and the doctor will make a specific diagnosis and treatment plan, so as not to affect your life and delay your condition.