The examination methods of penile impotence generally include blood test, ultrasonography, vasoactive drug-induced erection test, auditory-visual sexual stimulation test, etc. It is recommended that patients go to the urology department of regular hospitals and be examined under the guidance of doctors. 1. Blood test: mainly through blood test to exclude whether the patient has heart disease, low testosterone level, diabetes and other diseases, such diseases can also induce penile impotence. 2. Ultrasound: It is mainly used to check the blood supply and venous closure of the penis to determine whether penile impotence is triggered by vascular lesions of the penis. 3. Vasoactive drug-induced erection test: the method of special drug injection is used to check the patient’s ability to have an erection, so as to determine whether the patient has penile impotence. 4. Auditory-visual sexual stimulation: it is a kind of auxiliary examination of penile impotence, which detects the patient’s penile erection ability by watching the image of sexual behavior, and this method has a high reference to the existence of penile impotence. If patients have symptoms of impotence in daily life, they need to go to regular hospitals for treatment as soon as possible.