The fetus has not been delivered after the cervix has become fully dilated within 2 hours for a primipara, or 1 hour for a multipara. Presence of regional anaesthesia will add 1 hour.
Also indexed as
Arrest of descent during second stage of labourProlonged second stage of labourlong labour, second stagelong second stage of deliveryprolonged or protracted second stage of labourprolonged second stage of delivery