What's in human excrement?

Feces contain undigested cellulose in food, epithelial cells shed from digestive tract, mucosal fragments and a large number of bacteria, as well as undigested digestive tract secretions, such as mucus, bile pigment, mucin and digestive juice. If you don't eat vegetables and miscellaneous grains, the composition of feces is always the same, that is, 65% water and 35% solid.

The bacteria in the solid part are the most, accounting for one-third to one-half of the total. When the feces are discharged, most of the bacteria have died. There are also 2% ~ 3% nitrogen-containing substances and 10% ~ 20% inorganic salts, such as calcium, iron and magnesium salts. Fat accounts for 10% ~ 20%, one is decomposed fat that is not absorbed, the other is neutral fat from bacteria and epithelial debris, and there are a small amount of cholesterol, purine groups and vitamins.

Extended data

The main reasons for irregular stools and frequent diarrhea are as follows:

1, unclean diet: due to unclean diet, Escherichia coli, Salmonella, Shigella and other infections lead to diarrhea, which leads to irregular stool and frequent diarrhea.

2, caused by enteritis: enteritis caused by drug abuse, viral infection, etc. It will also lead to irregular stools, mostly sparse.

3, caused by indigestion: irregular diet, eating too much, eating indigestible food, or due to insufficient gastric motility, food stays in the stomach, causing stool deformation, frequent, mostly diarrhea-like.

4, gastrointestinal dysfunction: due to gastrointestinal dysfunction, stool is not shaped and diarrhea, often manifested as constipation and diarrhea alternately.

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