What symptoms will blocked bowels present?

Bowel Obstruction. Small bowel obstructions (sbos) manifest themselves as the acute onset of vomiting, cramping pain, bloating, and absence of passage of gas or stool. They are most often due to adhesions from prior surgery; less commonly, due to hernias or cancer. In the context of prior surgery, non-operative management is often successful, provided that there are no signs of intestinal compromise.