Hysteroscopy is more painful than imaging. The main reason is that most of the hysteroscopy is applied anesthesia, and then given to the examination or surgery, such as local anesthesia, or general anesthesia, according to the specific conditions of the decision to anesthesia methods, while the imaging does not require anesthesia, especially if the fallopian tubes do not pass into the uterine cavity, the pressure will increase, so it will cause lower abdominal distension and pain, which is more serious, and the imaging test must be kept in the hospital to observe for 1 hour, no discomfort before you can leave the hospital. After the imaging test, you must stay in the hospital for 1 hour for observation and leave the hospital only if you feel uncomfortable. Whether it is hysteroscopy or contrast examination, it is necessary to strengthen the local care of the vulva after the operation, wash the vulva with water, iodine povidone or scrub the vulva every day to avoid pathogenic bacteria infection.