Commonest cause of non-engaged head in primi at term is: (A) CPD, (B) Hydramnios, (C) Brow presentation, (D) Breech presentation
Answer is A. Causes of Obstructed labour : CPD Contracted pelvis Cervical dystocia Transverse lie Brow presentation Hydrocephalus Big baby Compound presentation Locked twins Ref: Dutta Obs 9e pg 379.