Asherman's syndrome is characterized by the presence of intrauterine adhesions (IUA) as well as symptoms such as amenorrhea, hypomenorrhea, pelvic pain, and infertility. The gold standard for the treatment of intrauterine adhesions is hysteroscopic intrauterine adhesions. The recurrence of intrauterine adhesions is a major challenge in clinical practice. The isolation of barriers in the uterine cavity may be a measure to reduce postoperative re adhesion, but the effect of different devices is different. Therefore, this study was conducted.

The Foley catheter is usually inserted into the uterine after a hysteroscopic adhesiolysis and removed after on the 5-7th day after surgery. Several investigators demonstrated its favorable effect in the recurrence of adhesion after the treatment of intrauterine adhesion. Disposable balloon uterine stent is specially designed to fit into the cavity of the uterus, and usually removed on the 7th day after surgery.

Inclusion Criteria:

• age 20-40 years;
• Moderate to severe intrauterine adhesion (AFS score ≥5）;
• complains of menstruation disorder and reproductive dysfunction
• Agreement to have second-look hysteroscopy
• informed consent

Exclusion Criteria:

• ovarian failure
• patients who did not proceed to second-look hysteroscopy within the specified time frame
• Contraindication of hormone