A 52-year-old man who suddenly can’t get an erection belongs to erectile dysfunction, which is mainly considered to be related to psychological factors, mental factors, drug factors and organic factors. 1. Psychological factors: for example, the husband and wife relationship is not harmonious, life pressure, long-term in a state of tension, can trigger erectile dysfunction. 2. Mental factors: such as schizophrenia, depression and other diseases, can lead to erectile dysfunction and other physical symptoms. 3. Drug effects: some people may have adverse reactions such as erectile dysfunction after applying drugs such as reserpine and diphenhydramine. 4. Organic factors: diseases such as prostatitis, pituitary tumors, diabetes, etc. can lead to erectile dysfunction in patients. The above drugs should be used under the guidance of a doctor. Erectile dysfunction may also be caused by other factors, it is recommended that patients go to the regular hospital in time for treatment, and strive for early recovery.