Hysteroscopy is a minimally invasive procedure that is more widely used in gynecology. Together with the light source and imaging system, it can clearly show the lesions in the uterus and cervical canal, and if abnormalities are found during the examination, they can also be treated. The hysteroscope, which is usually within a few millimeters in diameter, goes through the cervical canal into the uterine cavity to perform the relevant examinations and treatments, and usually does not cause much pain to the patient. If the procedure goes well, it is relatively short, usually completed in a few minutes, and the patient only feels a sensation of distension or vague pain in the lower abdomen during the procedure, which is well within the tolerable range. Usually, the surgery can be performed on an outpatient basis, but if the surgery is complicated or if some patients are particularly fearful or overly nervous and have a poor tolerance for pain, they may choose to undergo general anesthesia for examination and treatment, in which case the surgery will not be completed on an outpatient basis, but will be performed in an inpatient setting. The sensitivity to pain varies with the individual’s physique, but it is important to understand that the occurrence of pain is influenced by mental and neurological factors. Anxiety, fear and tension can stimulate pelvic pain fibers through the central nervous system, and emotional tension can aggravate pain symptoms.