The majority of the causes of ovarian teratomas stem from embryonic development, generally due to congenital factors leading to the formation of ovarian teratomas. A well-developed teratoma forms a complete teratoma, while poor development results in an incomplete teratoma, which typically exhibits a higher degree of malignancy. Most teratomas are benign tumors, with only a very small percentage showing tendencies to become malignant. Therefore, it is crucial for patients with teratomas to seek surgery at a hospital as soon as possible, and post-surgery, the removed tissue should be re-examined pathologically to check for any abnormalities. Hence, patients with ovarian teratomas must actively seek medical treatment at a hospital and, after recovery, prevent recurrence by undergoing regular medical check-ups annually, thus ensuring proactive treatment for those with teratomas.