After hysteroscopic surgery, there is basically no belly enlargement. Hysteroscopy is a minimally invasive surgery, and the operation is performed with special instruments that enter the uterine cavity through the vagina to remove abnormal tissues in the uterine cavity. The operation is only performed in the uterine cavity and does not affect other organs, so there will not be a large stomach. If there are no symptoms and a large stomach appears, it may be due to bed rest after the operation, along with supplementation and obesity. However, if the belly is large while the pain in the lower abdomen is more intense, or the feeling of swelling in the anus, do not exclude that the surgery caused by the perforation of the uterus caused, this situation requires a timely visit to the hospital for gynecological examination, pelvic ultrasound helps to diagnose, if necessary, surgical treatment is needed to cure.