Men who have difficulty in erection, lifting but not firm, short time, no pleasure, is the manifestation of erectile dysfunction, premature ejaculation, can go to the hospital for further examination to clarify the cause of the disease, and then timely consultation. 1. Erectile dysfunction: generally due to mental factors, improper diet, bad sexual habits and other factors, resulting in men have difficulty in erection, lifting but not firm phenomenon. Erectile dysfunction patients can follow the doctor’s advice to use sildenafil citrate tablets, tadalafil tablets and other drugs to treat. 2. Premature ejaculation: usually due to psychological factors, inflammation, trauma and other factors, resulting in the phenomenon of short time. Premature ejaculation usually occurs in the short time of sexual life, anxiety and other symptoms, can follow the doctor’s instructions to use dapoxetine hydrochloride tablets, fluoxetine and other drugs to treat. The cause of erectile dysfunction and premature ejaculation is not completely clear, and it is recommended that patients go to regular hospitals in time for treatment.