<prompt> In a case of direct occipito-posterior position face to pubis delivery most commonly encountered problem is:Intracranial injuryCephalhematomaParaurethral tearsComplete perineal tears  <response>: Ans. is d, i.e. Complete perineal tearsRef. Dutta Obs. 7e, p 370In face to pubis delivery - the most common complication is perineal tear as the occiput is posterior and thus the longer biparietal diameter 9.4 cm distends the perineum rather than the smaller bitemporal diameter 8 cm. Hence in all such cases liberal episiotomy should be given. 