What happens when you have black shit in the third trimester?

1. Dietary factors If a

large amount of animal blood is eaten

in the third trimester of pregnancy

, it may pull black stool, because the animal blood is rich in iron, and iron enters the body through oxidation and reduction to form black iron sulfide.

2. Drug factors

Some pregnant women may supplement iron by taking medicine during pregnancy, such as ferrous succinate, iron dextran, ferrous sulfate, etc. If the dosage is too large, it may cause excessive iron intake and cannot be completely absorbed. When it is discharged through the intestine, it will be oxidized into iron sulfide, thus causing symptoms of pulling black stool.

3. Upper gastrointestinal bleeding After upper gastrointestinal

bleeding, blood will gradually enter the intestine with the digestive tract. In this process, iron ions in the blood will be converted into black iron sulfide, so it will pull black stool.