Patients with teratomas may have no clinical symptoms whatsoever. Some women only discover ovarian teratomas incidentally during gynecological ultrasound examinations at health check-ups. However, it is important to note that if ovarian teratomas develop complications, they can present a range of clinical symptoms. For example, if an ovarian teratoma undergoes torsion, the patient may experience lower abdominal pain, accompanied by nausea and vomiting. Moreover, if the teratoma has malignant tendencies, it can exhibit a series of clinical manifestations typical of malignant tumors.