What is the probability that black is cancer?

It is not clear how likely black stool is cancer, and it should be analyzed according to specific circumstances.

Black stool may be caused by diet, drugs, or benign diseases such as gastric ulcers and gastritis, and may also be related to cancers such as gastric cancer and intestinal cancer. The possibility of cancer cannot be determined by simple black stool symptoms. If persistent black stool is accompanied by symptoms such as abdominal pain, diarrhea, and change in stool shape, the possibility of cancer is relatively high. However, if black stool occurs only occasionally and there are no other discomfort symptoms, the possibility of cancer is relatively low.

If cancer is suspected, it is recommended to seek medical attention and conduct relevant examinations promptly. It is necessary to maintain good living habits, regular diet, and appropriate exercise to prevent gastrointestinal diseases.