When women develop benign ovarian cysts, the clinical symptoms are somewhat related to the number and size of the cysts. For example, when the cysts are relatively small in diameter, they usually exhibit no clinical manifestations and are often only discovered during routine gynecological exams or ultrasound screenings. As the cysts grow in size, some women may experience heaviness and pain on one side of the lower abdomen, along with a sore back. These abdominal symptoms can worsen with excessive fatigue, staying up late, or during intercourse. Some women may also experience abnormalities in their menstrual cycle, such as changes in the amount of menstrual bleeding, duration of menstruation, or irregular vaginal bleeding.