Malignant ovarian tumor is often not obvious in the early stage, but in the middle and late stage, there may be the following symptoms: 1) uncomfortable feeling in the lower abdomen, abdominal distension, or abdominal mass; 2) loss of appetite, or nausea, lethargy, anemia, etc. 3) irregular vaginal bleeding, especially in postmenopausal women. 4) ascites, weight loss, increased frequency of bowel movement, increased urination, pleural effusion, shortness of breath, and urination. Bleeding may occur, which should be taken seriously.4. Ascites may also occur, and the patient may lose weight, have an increased frequency of bowel movements or urination, or have pleural effusion, shortness of breath, and inability to lie down, and other corresponding symptoms. Once found one of the above symptoms, to go to the hospital as soon as possible to do the appropriate examination, also recommended that women do a gynecological examination every year, mainly to exclude the possibility of malignant tumors.