Pulling green stools is associated with diseases such as functional dyspepsia and irritable bowel syndrome, and can also be caused by medications or improper lifestyle. 1.Diseases: Adults with green stools are mainly associated with functional dyspepsia, bacterial dysentery and irritable bowel syndrome. Functional dyspepsia, when severe diarrhea occurs, green stools can be seen. Bacterial dysentery, the stools are first dilute watery stools, and then pus and blood stools appear, and when diarrhea is severe, green stools appear. Irritable Bowel Syndrome (IBS) also has green stools when diarrhea is severe. Green stools in infants and young children are mainly related to indigestion, rotavirus enteritis, pseudomembranous enteritis and so on. 2. Drugs: bismuth potassium citrate, indomethacin, green stools will appear after taking. 3. Lifestyle: Improper diet and over-representation of vegetables can lead to green stools. Rule out drugs or lifestyle and other causes, it is recommended to go to the hospital in time, identify the cause and timely treatment.