Another name for stool is feces. It is made of what is left after your digestive system (stomach, small intestine, and colon) absorbs nutrients and fluids from what you eat and drink.

Where are faeces formed?

The large intestine absorbs water from the chyme and stores feces until it can be defecated. Food products that cannot go through the villi, such as cellulose (dietary fiber), are mixed with other waste products from the body and become hard and concentrated feces.

Where are feces formed and stored?

The last part of the large intestine is the rectum, which is where feces (waste material) is stored before leaving the body through the anus. The main job of the large intestine is to remove water and salts (electrolytes) from the undigested material and to form solid waste that can be excreted.