What causes stools to turn black?
VerifiedHealing with hope, guiding with care.
Stool blackening may be caused by dietary factors, drug factors, disease factors, etc.
1, dietary factors
daily eating too much iron-rich foods, such as animal blood products, beef, pig liver, etc., iron will be oxidized into black iron sulfide after digestion and absorption by the human intestine, so that stool blackens.
2, drug factors
If due to physical reasons to supplement iron or take bismuth, such as ferrous sulfate, ferrous succinate, bismuth potassium citrate, etc., it will be caused by drug factors stool blackening.
3, disease factors
If they suffer from esophageal varices, acute gastritis, intussusception, hemorrhagic necrotic enteritis, intestinal polyps and other diseases, causing bleeding, blood and feces mixed will cause stool blackening.
