Impotence, also known as erectile dysfunction, can be categorized into psychological and organic erectile dysfunction according to the causes that lead to its occurrence, and it is recommended to clarify the specific causes of the disease after timely consultation. 1. Psychological erectile dysfunction. It is mainly related to mental psychological factors, such as the wrong understanding of sex, long-term mental stress and fatigue, sexual experience has been traumatized, etc. may lead to erectile dysfunction. 2. Organic erectile dysfunction. It is common in a variety of organic diseases, including vascular factors, neurological factors, endocrine factors, anatomical or structural factors, traumatic factors, drug factors and so on. (1) Vascular factors. Such as hypertension, hyperlipidemia, coronary artery disease, diabetes mellitus, etc. lead to problems in the corresponding blood vessels, causing erectile dysfunction. (2) Neurological factors. Erectile dysfunction may occur after a variety of factors cause damage to the central and peripheral nerves. (3) Endocrine factors. For example, hyper or hypothyroidism, hyper or hypogonadism, hypogonadism, etc. can lead to erectile dysfunction. (4) Anatomical or structural factors. Such as external urethral malformation, superior or inferior urethral cleft, and circumcision may also lead to erectile dysfunction. (5) Traumatic factors. Such as pelvic trauma, penile trauma, etc. (6) Drug factors. Some drugs can affect the normal erectile function and thus lead to its disorder, such as antidepressants, antipsychotics, antihypertensives and so on. It is recommended that people with erectile dysfunction should consult a doctor in time to find out the cause of the disease and then be treated under the guidance of the doctor.