Impotence, which is also known as penile erectile dysfunction, is difficult to cure for many reasons, such as: mental factors, chronic physical diseases, age factors, bad habits and so on. 1. Mental factors: for example, mental stress, psychological burden, or emotional problems of both husband and wife will affect the normal sexual function, which may lead to erectile dysfunction. 2. Chronic physical diseases: there are also diseases such as diabetes, hypertension, cerebral hemorrhage, and urinary tract infections, which may also affect normal sexual function. In addition, chronic diseases may require long-term medication, the adverse effects of drugs, may also cause erectile dysfunction. 3. Age factor: with the growth of age, the body’s functions decline, sexual function will also gradually decline, thus causing erectile dysfunction. 4. Unhealthy habits: Bad habits such as smoking, alcoholism, and working late at night can also cause erectile dysfunction. Erectile dysfunction, you need to go to the hospital in time for examination, to clarify the cause of the disease and follow the doctor’s instructions for treatment.