Objective To analyze the crucial factors which affect the hospitalization expenses of patients with uterine adenomyosis, in order to take corresponding measures. Methods A total of 583 patients diagnosed with uterine fibroids reported by hospitals in urban areas of Suining city through hospital quality monitoring system between December 2013 and December 2015 were included in this study. The main reasons for the expense structure was described by Pareto’s law. The importance of hospitalization expense influencing factors was analyzed by neural network model, and single factor analysis was used to analyze important influencing factors of hospitalization expenses. Results The main factors influencing hospitalization expenses included length of stay in hospital, operation techniques and illness conditions, and their importance value was respectively 0.581, 0.175 and 0.088. Conclusion Based on hospitalization expenses, length of stay in hospital and expense structure, high intensity focused ultrasound therapy is more reasonable in the treatment of uterine adenomyosis.