Erectile dysfunction may be related to psycho-psychological factors, or it may be caused by bad habits, over-indulgence or organic diseases. 1. Psychological factors: If men have too much mental stress, emotional tension and anxiety recently, it may cause erectile dysfunction. 2. Bad life habits: some men may suffer from erectile dysfunction due to prolonged late nights, insufficient sleep, too much exertion, or prolonged heavy smoking and drinking. 3. Over-indulgence: Over-indulgence due to excessive masturbation or frequent intercourse may lead to erectile dysfunction during intercourse. 4. Organic diseases: Commonly seen in central nervous system diseases, hypertension, diabetes, etc., all of which can lead to the failure of the cavernous body of the penis to fill with blood, thus causing erectile dysfunction. Erectile dysfunction may also be caused by other reasons, if you continue to fail to improve, you should go to a regular hospital as soon as possible, after a clear diagnosis, by the doctor’s guidance for treatment.