ABSTRACT
Obstetric anal sphincter injuries (OASIS) are the major cause of anal incontinence and can have a devastating effect on women's quality of life. Until the advent of anal endosonography, the cause was attributed largely to pelvic neuropathy. However, despite identification and immediate repair of OASIS, the outcome is suboptimal as more than a third of women suffer from impaired continence. This chapter deals with issues related to acute oasis and a description of the various repair techniques is given.
