Ovarian cancer often does not present symptoms in its early stages and can be detected during gynecological examinations. Secondly, as the tumor grows, it can cause abdominal swelling and discomfort, and abdominal masses may be felt during examinations. Ascites may also develop. The severity of these symptoms depends on the size and location of the tumor, the nearby organs it invades, and the histological type of the tumor. Thirdly, if the tumor infiltrates or compresses surrounding tissues, it can also lead to abdominal pain, back pain, and pain in the lower extremities. If it compresses the pelvic veins, swelling in the lower limbs may occur. If the tumor is functional, it can produce symptoms related to excess estrogen or androgen. In its later stages, the condition may manifest as cachexia and severe anemia, among other signs of a severe illness state.