Objective:To investigate the effect of 3 methods of postoperative adhesion in patients with severeintrauterine adhesions.Methods:91 cases of severe intrauterine adhesions in patients

according to the operation method of postprocessing were randomly divided into 3 groups

91 patients underwent hysteroscopy under B-ultrasound monitoring uterine cavity adhesion electrocision. Group A after IUD + oral estradiol valerate. Group B after placement of chitosan + intrauterine device + oral estradiol valerate. Group C was placed with chitosan +COOK balloon stent + oral estradiol valerate. 3 months after the evaluation period to improve the situation

parallel two hysteroscopy to assess the improvement of uterine cavity adhesion. Results:From two dimensions of intrauterine adhesions and menstrual improvement

the total effective rate of group C was higher than that of group B

the total effective rate of group B was higher than that of group A

the total effective rate of group C was higher than that of group A. intrauterine adhesions total effective rate used variance analysis（F=3.612

P=0.032）;Menstruation to improve total effective comparison used rank sum test（χ

2

=8.984

P=0.029）.The difference was statistically significant（P

<

0.05）. Conclusion:The combined application of chitosan and balloon stent can prevent the recurrence of severe intrauterine adhesion after TCRA operation.