FCOG-0687

A 22 year old woman had a C-section two hours ago. However, she has not urinated since then and claims she had no urinary complaints before the operation. Upon inspection she appears unwell and her abdomen is distended and tender suprapubically and in the left flank. Auscultation reveals no bowel sounds. Further examination reveals the following: Temp=37.5C, BP=94/73mmHg, Pulse=116bpm, Sat=97%. What’s the most likely complication?