Ovarian teratomas and ovarian cysts are two completely different diseases. Ovarian teratomas are caused by congenital factors and are tumors of the germ cells that can be benign or malignant, usually requiring surgical removal for treatment. Ovarian cysts, on the other hand, are caused by various factors in women, such as poor lifestyle habits or an imperfect diet structure, leading to a hormonal disease. Ovarian cysts can be physiological or pathological. Usually, physiological ovarian cysts gradually disappear with the menstrual cycle, while pathological ovarian cysts can also be benign or malignant. The need for surgical treatment depends on the nature, size, and clinical symptoms of the ovarian cyst.