Ovarian cancer is one of the common malignant tumors of female reproductive organs, with high morbidity and mortality rates, posing a serious threat to women’s lives. However, ovarian cancer is very secretive because it is located in the deepest part of the female pelvis, which is invisible and untouchable. Meanwhile, there are no clear symptoms in the early stage of ovarian cancer, and there is no mature screening and early diagnosis method, so 70% of the patients are already in advanced stage when they are diagnosed. Therefore, it is especially important to learn how to prevent ovarian cancer. The following are two points to note: 1. Pay attention to the following “signals”, such as recurrent bloating, diarrhea and other gastrointestinal symptoms, and timely gynecological examination should be carried out, combined with ultrasound, CT or MRI, tumor markers and other tests, to detect ovarian cancer; 2. Even if the tumor is benign, it should be dealt with positively and should not be delayed. Warm tips: except hereditary ovarian cancer, ovarian malignant tumors are difficult to be detected at an early stage and there is no first-level preventive measure, nowadays it is advocated that early diagnosis and treatment should be carried out for early detection of lesions.