Objective: The aim of our study is to clarify the problems of OASI (obstetric anal sphincter injuries) and anal incontinence and prevention of this injury.
Methods: Review of articles in peer reviewed journals with the usage of Google Scholar function and PubMed.
Conclusion: OASI is a severe injury which is more commonly associated with assisted vaginal delivery. This injury cannot be fully prevented, but its incidence can be averted by the usage of selective mediolateral episiotomy, or by other precautionary moves in high risk patients. The treatment of anal incontinence after OASI requires a complex approach and thorough examination. At first delivery, OASI is not a stern indication for caesarean section in accordance with current state of knowledge.
Keywords: OASI; anal incontinence; assisted vaginal delivery; forceps; sphincter injury; vacuum-extraction.