It's black shit. It doesn't matter.

Stool is black is likely to be caused by the intake of too much dark food, such as pig blood, pig liver, etc. It is a normal phenomenon, no special attention is required, but if there is occult blood, it indicates that there is gastrointestinal bleeding, this situation is more serious, and it may cause hemorrhagic shock if it is not relieved in time, which is life-threatening.