Constipation can cause nausea because it leads to a backup in your digestive system, causing food to linger in your stomach.

Pain while pooping is a common symptom of conditions as minor as constipation and as serious as anal cancer.

Watching what passes through your gut gives useful health clues sometimes. Stool look and quality show what is happening inside you. Seeing undigested food in stool might worry you first. But it is ...