This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Abnormal labor, Subject name: Gynaecology & Obstetrics
Symphysiotomy is indicated in: 
Select and explain. 
A. Contraction of brim, B. Contraction of cavity, C. Contraction of outlet, D. All of these
C: Contraction of outlet
Answer: C: Contraction of outlet 
Explanation: Symphysiotomy is indicated ideallywhen outlet contraction of pelvis is present. It is the operation designed to enlarge pelvic capacity by dividing symphysis pubis