What's wrong with eating soba noodles?

1, diet is unreasonable

buckwheat flour itself is gray, if a large intake of buckwheat flour in a short period of time, resulting in gastrointestinal tract can not be completely digested, absorption, stool will be found black.

2, gastric ulcer

gastric ulcer is formed in the stomach wall ulcer, when the ulcer blood vessels rupture, will cause gastric bleeding and enter the stool through the intestine, can be found pulling black stool.

3, inflammatory bowel disease

inflammatory bowel disease is a chronic inflammatory disease, patients due to intestinal mucosal damage, bleeding, eating buckwheat flour will appear black stool symptoms.