What causes appendicitis?

Explaining Our Body on Instagram: "Stools, also called feces, are the solid waste that the body eliminates after digestion. When we eat, food travels through the digestive system where nutrients and water are absorbed into the body. What remains—undigested food, bacteria, salts, and other waste—moves into the large intestine, where more water is removed. The final material is then stored in the rectum until it leaves the body during a bowel movement. The appearance of stools can tell a lot about