What's going on with green shit?

Stool is green, found in the following situations: first, food factors, eating darker vegetables such as spinach, cabbage, black fungus and other foods. At this time, the pigment in the food in the intestine failed to fully absorb, will cause stool color has dark, green performance; if eating pig blood and other iron-containing food ingredients, iron sulfide formed in the intestine stool will also be black, green. Second, drug factors, in taking some Chinese medicine or Chinese medicine preparations or iron containing more drugs, will also cause stool green, darkening. Third, gastrointestinal bleeding, such as peptic ulcer, esophageal varices bleeding, caused by blood accumulation in the intestinal tract, blood hemoglobin iron in the intestinal bacteria under the action of iron sulfide, will cause stool color is black or even green performance. For stool is green, it is best to go to the hospital for laboratory stool and occult blood examination to determine whether there is gastrointestinal bleeding. If the gastrointestinal bleeding is ruled out, the color of the stool will be observed through adjustment of eating habits. If the diet is improved, the color of the stool will turn yellow and normal. If there is gastrointestinal bleeding, active symptomatic treatment is needed.