Objective To explore the effect of Baduanjin exercise on signs, sex hormone and ultrasound of ovary in patients with polycystic ovary syndrome (PCOS).Methods Sixty patients with PCOS were randomly divided into the observation group and control group, 30 cases in each group. Both groups were given low calorie diets and did not take any drugs. The observation group were organized regularly to perform Baduanjin exercise for six months, while the control group did not take extra exercise except daily activities. The physical signs, level of sex hormone and morphological changes of ovary under B ul...