The most important reason for doctors to chase patients for farting is to find out if there is any gas expelled from the intestine, and the most important reason is to find out if bowel function is restored, if the intestine remains open, and if there is still intestinal obstruction.
In general, the presence of farting or defecation indicates recovery of bowel function, return of bowel patency and basic exclusion of intestinal obstruction, which is also a reference standard for recovery of bowel function and gradual normal feeding after surgery.