Eating stinky tofu is usually related to food factors, peptic ulcer, stomach cancer and other causes.
1. Food factors: Eating black foods such as stinky tofu, duck blood, animal liver, etc. can excrete black stools, and the symptoms will be relieved after stopping eating these foods.
2. Peptic ulcer: such as gastric ulcer, duodenal ulcer, etc., often accompanied by bleeding, the blood passes through the digestive tract and eventually oxidized to form black stool.
3. Gastric cancer: Cancer grows rapidly and tends to rupture and bleed easily, and the amount of bleeding reaches a certain amount will lead to black stool.
Black stool may also be related to medication, rectal cancer, colon cancer, etc. It is recommended to perform routine stool tests. If black stool is caused by bleeding, it is necessary to raise vigilance, check the source of bleeding in time and carry out targeted treatment. If the source of bleeding cannot be detected, fecal occult blood test must be rechecked periodically until the source of bleeding is detected or excluded.