Question

what happens when someone is stabbed in stomach

Answer 1

our stomach will pain and it will cause some damage in our internal organ

Answer 2

While a stab wound to the stomach is certainly possible, you're more likely to be stabbed in the lower area of the gut, being the intestines. A stab to the liver, for instance, will likely kill you much faster than your intestines, given blood flow, proximity to other vital organs, etc.