Abnormal color stool
There is pus in the stool, blood, even mucus like strawberry jam, pus and runny nose, which may be dysentery. The stool is tar-like black or dark red, which may be upper gastrointestinal bleeding. The stool is bloody and bright red, which may be lower gastrointestinal bleeding or anal fissure. The stool is green and frothy, which may be indigestion. Watery stool or gruel loose stool may be diarrhea caused by various reasons. The stool is brown and hard, which may be constipation.
Abnormal stool is not a problem.
Shit stinks, because protein has indigestion after eating too much, which is not a problem. Foamy stool, this is because sugar fermentation is vigorous, not a problem.