Originally Posted by EddyTheDog

Faeces (also spelled feces) are the solid or semisolid remains of the food that could not be digested in the small intestine, and has been passed through the large intestine. They are normally made up of 75% water, and the remaining 25% is a combination of dead bacteria, undigested food, mucus, and other waste products. Faeces are usually brown in colour due to the presence of bile pigments from the liver.

The smell of faeces is caused by bacteria that breaks down the waste products. Faeces contain a variety of bacteria, some of which are beneficial for the body. These bacteria help to break down food, aid in digestion, and produce vitamins.

Faeces are usually eliminated from the body through the rectum and anus. This process is known as defecation. Defecation is a natural process that helps to keep the body healthy and free of toxins.

Faeces can also be used to diagnose certain medical conditions. For example, faecal occult blood tests are used to detect bleeding in the digestive tract, while faecal fat tests can be used to diagnose problems with fat digestion.

In some cases, faeces can be a source of infection. Faeces can contain a variety of bacteria, viruses, and parasites which can cause serious illnesses if they enter the body. It is important to practice good hygiene when handling and disposing of faeces.