Black stool is a sign of what disease

Black stool is generally not a sign of disease, but may be a symptom of peptic ulcer, esophageal varices, digestive tract tumors and other diseases.

1, peptic ulcer

if it has gastric or duodenal ulcer, may cause upper gastrointestinal bleeding, blood and feces mixed with black stool.

2, esophageal varices

if suffering from cirrhosis, leading to esophageal vein due to excessive pressure and expansion, may also cause upper gastrointestinal bleeding, resulting in black stool.

3, digestive tract tumor

If there is a tumor in the digestive tract, tumor rupture will cause bleeding, blood and feces mixed with black stool performance.