Objective To investigate the effect and feasibility of intrauterine cryotherapy for treating dysfunctional uter- ine bleeding. Methods Thirty-three patients wece randomly selected from outpatients. The probe temperature was between - 40- - 80℃, which lasted 4 to 6 minutes during each circle of cryotherapy. Results All the patients showed curative effects after treatment. No anaesthesia was needed in the cryogenic operation. Conclusion Dysfunctional uterine bleeding is the optimal indication of intrauterine ...