Ovarian teratoma of 3 centimeters is usually not very serious. Ovarian teratoma is a tumor derived from ovarian germ cells, divided into mature teratoma and immature teratoma, the mature type is generally benign tumors, a few have a tendency to malignant changes. Ovarian teratomas are usually diagnosed by ultrasound and surgical treatment is preferred after diagnosis. Usually, there is no obvious change in ovarian function after the teratoma is surgically removed from the teratoma tissue. After the surgery, the patient should pay attention to appropriate rest and strengthen nutrition, and after recuperation for a period of time, the body is generally not seriously hurt. After surgery, the specimen should be sent to pathology for examination, most of them are benign, very few of them may be malignant, and if they are malignant, they need to be operated again. Once diagnosed with ovarian teratoma, female friends should be hospitalized as early as possible to avoid adverse consequences.