After hysteroscopic surgery, if the menstrual cycle changes from 28 days to 31 days, this is also a normal menstrual cycle and there is no need to be too nervous. For women, generally through the hysteroscope to remove local polyps, birth control devices, or to remove submucosal fibroids, there may be damage to the endothelial tissue, and because hysteroscopic surgery may stimulate the uterus and other reproductive organs, which affects the function of women’s ovaries, so the woman may have a change in the menstrual cycle, generally delayed or advanced no more than 7 days are considered normal. For women after hysteroscopy, it is also necessary to pay attention to keep the vulva clean and hygienic, pay attention to rest, maintain a happy mood, get out of bed as soon as possible after the operation is conducive to gastrointestinal function, physical recovery, if there is an increase in abdominal pain, increase in vaginal bleeding and other discomforts, you need to go to the gynecology department of the regular hospital as soon as possible, improve ultrasound and other examinations, to determine the cause of the cause of the disease in the doctor’s guidance and active treatment.