Abdominal distension in ovarian cancer may be caused by huge ovarian tumor compressing the surrounding tissues, combined with large amount of ascites as well as intestinal obstruction. When ovarian cancer patients do not go to hospital for treatment in time, cancer cells will keep replicating and the tumor will gradually increase in size. After a period of time, patients may develop huge ovarian tumor, and abdominal distension is very likely to occur when the tumor oppresses surrounding tissues such as bladder and intestines. When ovarian cancer is combined with a large amount of ascites in late stage, patients may also suffer from abdominal distension. When ovarian cancer tumor presses the intestinal tract, resulting in difficulty in passing intestinal contents and the patient is unable to pass gas and defecation, it may also lead to abdominal distension. If ovarian cancer patients allow the disease to develop, it may also cause stimulation to the peripheral nerves, causing patients to suffer from symptoms of severe pain, and may also affect the normal function of surrounding tissues. After experiencing abdominal distension, ovarian cancer patients should go to the hospital in time and choose appropriate methods to receive treatment, which can help to relieve the symptoms of abdominal distension.