Baby shit has black dregs. What's going on?

In general, if the baby stool has black residue, mainly due to the following circumstances caused: first, due to the baby after adding complementary food intake caused by blood products, in the baby more than 6 months later, can gradually add complementary food. Add complementary food, if eat duck blood, pig blood, will cause stool into black sample. In this case, stop adding blood products complementary food, baby stool black will gradually disappear. Second, due to the baby suffering from gastrointestinal bleeding, if the baby has gastrointestinal bleeding, it will also cause black stool. This situation should be timely to the baby to do the corresponding examination, such as giving the baby to do colonoscopy, gastroscopy and so on. Timely find out the cause of gastrointestinal bleeding, so targeted treatment, otherwise it will cause children to show hemorrhagic anemia and shock and so on.