Four cases of clinical Stage I endometrial carcinoma initially treated with hormonal therapy are included in this study. Three of them resulted in tumor regression and two of them permitted a subsequent three pregnancies. All patients are alive and without evidence of disease with a median follow-up of 35.7 months (range 17 to 72 months). We believe this is a promising approach through which we may be able to offer a conservative treatment maintaining high survival rates and preserving childbearing potential. Diagnostic and therapeutic data for fertility-desiring patients with endometrial carcinoma are analyzed in this study.