The word feces comes from the Latin meaning "dregs”. Feces are solid particle combinations of food residue, bacteria, and mucus. Human fecal matter varies significantly in appearance, depending on diet and health.

Normally it is semisolid, with a mucus coating. Average weight of healthy adult feces is 100-200 grams daily. Of this, 65% will be water and 35% dry matter. Feces may still contain a large amount of energy, often 50% of that of the original food. This means that of all food eaten, a significant amount of energy goes back to feed our ecosystem. Many organisms feed on feces, from bacteria to fungi to insects such as dung beetles that can sense odors from long distances.

There are many colloquial terms for feces, some are considered profanity such as shit or crap while others such as poop, turd, number two, and doody) are not. Terms such as dung, scat, spoor and droppings are normally used to refer to animal feces. Stool is a common term normally used in reference human feces.

There is the study of “Scatology” that helps scientists Anthropologists, Physicians. By studying feces we can tell where a person lived or visited, what type of diet they had. You can detect ulcers, cancers, parasites, as well as bacterial infection. Stool is used to diagnose bowel dysfunction, and sometimes yeilds vital information from a crime scene (from the DNA of cells within the feces).


Solid matter excreted through the anus.


The normal color is brown and when ill it can vary from yellow, green or black. It can be hard, soft, tarry, or liquid. Its brown coloration comes from a combination of bile, and bilirubin that comes from dead red blood cells.


Like small tubes of mud.


Below the waist.


Solid matter excreted through the rectum and anus.


Large colon and anus.

Meditation on Feces