Erectile dysfunction at around 40 years of age is partly due to physiological factors such as physical fatigue and emotional conditions. Pathologic factors include abnormal endocrine function, abnormal nerve function, and abnormal blood supply. 1. Physiological factors: (1) Excessive fatigue: the body is in a state of overwork, which will have a certain impact on the erection, most of which can be relieved through rest. (2) Abnormal emotional condition: emotional tension, mental anxiety will also have a certain impact on the erectile status, through psychological adjustment can be restored. 2. Pathological factors: (1) Endocrine function abnormality: abnormal hormone level in the body, mainly testosterone level is lowered, can also cause the corresponding situation, if necessary, can be artificially supplemented testosterone. (2) Abnormal nerve function: central nerve damage or abnormalities in the nerves innervating the penis can affect the erectile state. (3) Abnormal blood supply: Arteriosclerosis or abnormal blood vessels affecting the blood supply to the penis can also cause abnormal erections. If you have an abnormal erection that cannot be relieved, you need to consult a doctor in time for observation, and carry out standardized treatment under the guidance of the clinician after diagnosing the condition, so as to avoid the delay of the condition.