Line 9:1·"Gender differences" is not a recognised heading for this article type.
"Contents"
Line 14:1·"Contents" is not a recognised heading for this article type.
"Complications"
Line 17:1·"Complications" is under the wrong parent heading (found under "Treatment and prognosis").
Commas
suggestion
"Contents may include mesenteric fat (most common), peritoneal fluid, small bowel loops, mobile colon segments (sigmoid, caecum, appendix), bladder and ureter 7."
Line 15:53·More than 5 commas in a single sentence might make it more difficult to read.