Malignant ovarian cysts, commonly known as ovarian cancer, often present with no symptoms in most people. Patients generally do not exhibit any specific symptoms. In advanced stages, however, symptoms such as ascites and abdominal swelling or pain may occur due to the cyst pressing on other organs in the abdomen. Initially, these symptoms might be mistaken for gastrointestinal issues, hence the importance of undergoing a gynecological ultrasound examination. In early stages, ovarian tumors may not show any symptoms, so it is recommended that women undergo tumor marker tests, such as CA125 and HE4, as well as routine ultrasound examinations.