bowel movement—when stool passes out of your child's body. Also called a “BM.”

diarrhea (dye-uh-REE-yuh)—passing loose, watery stools.

enema (EN-uh-muh)—a liquid put into a person's bottom to make him or her pass stool.

laxative (LAX-uh-tiv)—a medicine to make stools softer.

nausea (NAW-zha)—feeling like throwing up.

rectum—the last several inches of the large intestine, where stool is stored before passing out of the body.