The shit is like sheep shit, and it's black. What's going on?

Stool like sheep droppings a grain and black, considering dietary factors, drug factors, disease factors and other causes.

1, dietary factors

recently eat too much pork liver, pig blood, goose liver, duck blood and other foods, and too little water intake, intake of fiber-containing food less, can lead to stool dry knot, black.

2, drug factors

patients due to physical reasons to use iron, pectin bismuth, calcium carbonate and other drugs, can lead to stool dry knot, black, generally after stopping can return to normal.

3, disease factors

stool like sheep droppings a grain and black, may also be esophagitis, esophageal hiatus hernia, esophageal cancer, colon cancer and other diseases caused.