What is the cause of gastric ulcer?

1, improper diet

If you eat more blood products, animal viscera or green leafy vegetables recently, due to the rich iron in food, under the action of intestinal bacteria can lead to black stools.

2, drug factors

Gastric ulcer patients recently take colloidal bismuth pectin, bismuth potassium citrate and other bismuth agents to protect the gastric mucosa, due to the special nature of the drug, can also lead to black stools.

3, gastrointestinal bleeding

If you usually eat improper diet, eating spicy coarse food, or excessive drinking, can stimulate the ulcer surface leading to bleeding, blood chemical reaction in the intestine, can also cause black stools.