1. Lower abdominal discomfort. Lower abdominal discomfort is the initial symptom before the patient touches the lower abdominal mass. Due to the weight of the tumor itself and the influence of intestinal peristalsis and body position change, the tumor moves in the pelvic cavity and pulls its tip and pelvic funnel ligament, so that the patient has the feeling of lower abdomen or skeletal fossa swelling and sinking. 2. Thickening of abdominal circumference and enlargement of intra-abdominal masses. Patients notice that their clothes or waistband seems tight, then they notice the enlargement of the abdomen, or they feel it by chance in the morning, so they press the abdomen and find a swelling in the abdomen, coupled with abdominal distension and discomfort. 3. Abdominal pain. If the tumor has no complications, it is rarely painful. Therefore, if ovarian tumor patients feel abdominal pain, especially if it occurs suddenly, it is mostly due to twisting of the tumor tip, or occasionally due to tumor rupture, bleeding or infection. In addition, malignant cysts mostly cause abdominal pain and leg pain, and the pain often causes patients to seek medical attention as an emergency. 4. Menstrual disorders. In general, ovarian, even bilateral ovarian cysts, do not cause menstrual disorders because they do not destroy all normal ovarian tissues. Some uterine bleeding is not endocrine in nature, or it may be caused by ovarian tumors that change the distribution of blood vessels in the pelvis and cause endometrial congestion; or it may be caused by ovarian malignant tumors that metastasize directly to the endometrium. 5. Compression symptoms. Huge ovarian tumor may cause dyspnea and palpitation due to compression of the diaphragm, and ovarian tumor combined with large amount of ascites may also cause such symptoms; however, some ovarian tumor patients’ dyspnea is caused by one or bilateral pleural effusion. 6. Frequent urination. The frequency of urination without painful urination and urgency; or constipation.