What cause green bowel movement?

Some green undigestd: It may be green if you ate some green colour food which was undifested.If otherwise your bowels are regular and normal, i will not worry about it, but if you have green stool persisting then consult your doctor.

Green bm: If stool is loose, reason for green stool could be rapid gut transit time. Green cabbage, lettuce, peas, cabbage, spinach, broccoli, green salad, green leaves, celery and green beans as well as food that contains green food coloring can lead to green stool. Some meds can change stool color. If there is a change to stooling pattern that can’t be explained medical eval would be prudent.