How often you need to be reviewed after hysteroscopy depends mainly on which kind of surgery was done. If the surgery was done to remove submucosal fibroids, it is recommended to have an ultrasound examination once every six months to know if there is a possibility of recurrence, because fibroids recur in about 30% of patients, so it is important to review regularly. If the IUD removal surgery was done under hysteroscopy, you can do the corresponding examination one month after the IUD removal, mainly to know whether the IUD has been completely removed. In case of hysteroscopic removal of endometrial polyps, it is also necessary to review regularly because endometrial polyps are also recurrent. It is recommended to have an ultrasound examination once a year, and if there is irregular vaginal bleeding, you should always go to the hospital for the corresponding examination.