Babies who eat too many blueberries may have green stools. Blueberries contain certain anthocyanins that can cause green stools. However, green watery stools can also be caused by enteritis. The anthocyanins in blueberries enter the baby’s gastrointestinal tract and are not well digested and absorbed, causing the stool to turn green. However, the nature of the stool will not change and the frequency will not increase. Most of this green color will disappear after stopping the use of blueberries. No special treatment is needed. However, if the baby after eating blueberries accompanied by obvious abdominal pain and green watery stools, may also be due to bacterial infection caused by enteritis, need to go to the hospital in time to do a stool routine to clarify the diagnosis, under the guidance of the doctor active treatment. It is recommended that babies actively seek medical attention when they have green stools.