After minimally invasive surgery for ovarian teratoma, the catheter is usually retained for 24 hours. Patients with ovarian teratoma undergoing laparoscopic ovarian teratoma debulking surgery need to be under general anesthesia, so they need to be given an indwelling urinary catheter. Because laparoscopic surgery is less traumatic for the patient, the urinary catheter can be removed on the 1st day after surgery, and the patient can get out of bed to urinate on his/her own, so the urinary catheter is usually retained for 24 hours after minimally invasive surgery for ovarian teratoma. Usually, the nurse will remove the urinary catheter on the 1st postoperative day after the patient’s infusion is completed. After removing the catheter, it is important to get out of bed as early as possible, drink more water and urinate more often to prevent urinary tract infection. If you experience frequent urination, painful urination or are unable to urinate on your own after surgery, be sure to inform your healthcare provider as soon as possible.