Short erection time and softening after erection is a manifestation of impotence, which will seriously affect the quality of coitus as well as the patient’s own physical condition, and is mainly related to abnormal hormone levels, insufficient blood supply and psychological factors. 1. Abnormal hormone levels: The hormone that maintains erection in men is androgen, which mainly exists in the form of testosterone in the body, and a decrease in the corresponding index will cause impotence. 2. Insufficient blood supply: partially related to the blood supply of the corpus cavernosum, insufficient blood supply affects the congestion of the corpus cavernosum of the penis, which further leads to related symptoms. 3. Psychological factors: the main cause of the corresponding condition is mainly due to the unsuccessful coitus or prolonged stress, which will lead to the corresponding condition. The short erection time is soft may also be other reasons, you need to consult a doctor in time, after the diagnosis of the condition in the clinician under the guidance of standardized treatment, to avoid delays in the condition.