“…The operation remains the major strategy in clinical treatment for infertility caused by occlusion of fallopian tubes in recent years, and the combination of hysteroscope and laparoscope is widely accepted by clinicians and patients due to the minimal invasion, rapid recovery and painlessness. However, the operation can only dredge the occluded fallopian tubes to restore the normal anatomical structure, yet remains hopeless in dealing with the changes in the microenvironment, including the pathological inflammation-caused injury and adhesion (6). Chitosan, as the sole cationic biological polysaccharide, is excellent in biological adhesion, antibacterial activity and compatibility and performs well in promoting wound healing and tissue regeneration (7).…”