When women discover ovarian cysts, it is not necessarily required to remove the entire ovary. For example, in women of childbearing age, the ovary can continue to ovulate, aiding in normal conception and secreting hormones to maintain normal endocrine function. In such cases, surgery to remove the ovarian cyst while preserving the healthy ovarian tissue can be performed. However, if a woman is nearing menopause or has already undergone menopause and discovers a large ovarian cyst, the function of the ovaries may have gradually declined or already ceased. If surgery is performed to remove the ovarian cyst, there is a possibility of recurrence, and the function of the ovary may already be lost. In this case, it might be appropriate to proceed with the removal of the ovary.