An isotonic, sterile, absorbable adhesion barrier gel composed of polyethylene oxide and sodium carboxymethylcellulose, with protective activity. Upon application of a single layer into the uterine cavity at the end of any hysteroscopic surgery, the absorbable adhesion barrier gel may provide a protective barrier which protects the traumatized tissue and allows for healing. This gel may therefore prevent the formation of post-surgical intrauterine adhesions.