Intrauterine adhesions (IUA), also called as uterine synechiae (US) or Asherman’s syndrome (AS), presents a condition characterized by presence of adhesions within the uterine cavity due to scars. The true prevalence of IUA is difficult to determine because IUA could be entirely asymptomatic; however, the condition has been estimated to affect 1.5% of women undergoing hysterosalpingography, between 5% and 39% of women with recurrent pregnancy loss and up to 40% of patients who have a history of surgical treatment for retained products of conception. Three stages of intrauterine adhesions are defined, which are mild adhesion, moderate adhesion, and severe adhesion. Etiology and pathophysiology, diagnosis and indications for treatment, intra- and postoperative management of IUA are discussed broadly in this chapter.