Premature ejaculation as the most difficult and largest disease in male medicine, if treated, the following tests are generally required: 1. sex hormone test, observe the hormone level, need to take blood test; 2. urinary system ultrasound, exclude from the kidney down, bladder, prostate, etc. whether there is organic lesions; 3. if conditions, can do penile vascular ultrasound, because the penis as the most critical part or link of premature ejaculation, that is, the good or bad blood vessels directly The most important thing is the physical condition of the person, which can be checked comprehensively, but it is not always possible to find out the problem. The key to premature ejaculation is not in the examination, but in the treatment, so the treatment must be more attentive, they should pay attention to health care, with the doctor to cooperate more, they should have confidence, persevere will certainly receive very good results.