Many women think that ovarian tumors are far away from them, but they are not. Ovarian tumors can occur at all ages, even in children and adolescents. However, ovarian tumors are also divided into conscientious and malignant ones, and ovarian cancer is a malignant tumor. However, ovarian cancer symptoms are not obvious and not easy to be detected. This is related to the physiological structure of ovary, which is located in the deep part of human pelvis and is very small in size. Early ovarian cancer basically has no obvious symptoms, and if there are symptoms, they are only atypical gastrointestinal symptoms such as stomach distension and abdominal pain, which are easily confused with other diseases. Therefore, we should beware of the following symptoms when they appear in the body Gastrointestinal discomfort: Gastrointestinal discomfort is a typical symptom of ovarian cancer in its early stage. Many people think that they have eaten something wrong and have stomach pain, but repeated visits to the gastroenterology department have no effect, so they should be alert to ovarian cancer. After the ovarian mass appears, due to its location near the intestine, it is easy to compress the intestine, causing gastrointestinal discomfort and therefore symptoms of digestive diseases. Irregularity of menstruation: Most ovarian cancer patients do not have abnormal menstruation, therefore, many people have ovarian tumors without detection. Knowing that ovarian tumor increases, it will continuously disrupt the normal tissues of ovaries and affect their functions, and the dysfunction of ovaries will affect menstruation. It is only when menstruation is abnormal for a long time that the patient will pay attention to it and go to the hospital. There is a swelling in the abdomen: most patients inadvertently feel a swelling in the lower abdomen when they wake up in the morning with a full bladder, and if the swelling grows rapidly or if ascites appears, then the disease should be highly suspected. It is also necessary to have regular gynecological cancer checkups. If ovarian masses of about 5 cm are found, they need to be followed up regularly and observed closely. If you have ovarian cancer, you should pay special attention to your diet. You should eat less indigestible and high-calorie food, avoid high oil and fat, eat more vegetables and fruits, have a balanced diet, eat less and more meals, and drink some green tea and coffee in moderation, as these drinks can play an antioxidant role.