Stage Ia highly differentiated endometrial cancer belongs to a kind of highly differentiated endometrial malignant tumor, and there is no exact data about its recurrence rate, but the possibility of recurrence is smaller than that of the moderately differentiated and poorly differentiated endometrial cancer. The malignancy degree of stage Ia hyperdifferentiated endometrial cancer is lower than that of poorly differentiated and moderately differentiated endometrial cancer, which means that the possibility of recurrence is smaller among endometrial cancers, and after active, effective and timely treatment, the possibility of recurrence will be reduced. Although there is no exact data to indicate the specific rate of recurrence, patients need to detect, diagnose and treat early. If there is stage Ia highly differentiated endometrial cancer, it is recommended to go to the hospital in time and take reasonable methods of intervention and treatment under the guidance of doctors to maximize the survival period and reduce the possibility of recurrence.