Menorrhagia or amenorrhea Most of the ovarian cancer patients have no change in menstruation. With the enlargement of the cancer tumor, the cancer cells will destroy the normal tissues of the ovary, leading to the dysfunction of the ovary, and the early symptoms of ovarian cancer may cause menorrhagia or amenorrhea. Vulvar and lower limb edema is also the main early symptom of ovarian cancer. With the enlargement of ovarian cancer, the pelvic vein will be compressed, resulting in poor blood flow and hindering lymphatic return, leading to edema of vulva and lower limbs. Gastrointestinal Symptoms If menopausal women often feel bloating and loss of appetite, and no gastrointestinal disease is found in gastroenterology examination, they should go to gynecology department for consultation at this time, because ovarian tumor will make the ligaments around the ovary compressed and pulled, and coupled with the agitation of ascites, gastrointestinal symptoms will often appear. This is one of the major early symptoms of ovarian cancer. Disorder of sex hormone level The pathological types of ovarian cancer are complex and variable. When some tumors secrete too much estrogen, the early symptoms of ovarian cancer can cause precocious puberty, menstrual disorders or postmenopausal vaginal bleeding. In the case of testicular mother cell carcinoma, it will produce too much androgen and show signs of masculinization. Abdominal pain Adhesion to the tissues adjacent to the ovaries can easily cause vague and dull pain in the lower back and abdomen. This is also a common early symptom of ovarian cancer. Compression symptoms: If the tumor grows and compresses the pelvic and abdominal organs, related compression symptoms will appear, such as compression of the diaphragm, which will cause dyspnea and palpitation; compression of the bladder, which will cause frequent urination, difficulty in urination or urinary retention; and compression of rectum, which will cause difficulty in defecation or frequency of defecation.