What is the reason for pulling out black stool?

Black stool refers to black stool. Pulling out black stool may be related to diet, taking drugs, digestive tract diseases and other factors. Correlation analysis is as follows:

1. If the patient

regularly eats duck blood, pig blood, chicken blood and other blood products, hemoglobin will accumulate in the intestinal tract and react with the intestinal environment, causing black stool.

2. Taking drugs

If the patient often takes ferrous sulfate tablets, dextran iron tablets, ferrous gluconate syrup and other drugs, iron elements will form iron sulfide in the digestive tract, resulting in black stools.

3. Digestive tract diseases

If there are enteritis, intestinal polyps, intestinal cancer and other digestive tract diseases, local bleeding will occur, and oxidation reaction of blood in the intestinal tract will lead to black stool.