Diarrhea The frequency and consistency of stools in children varies with age.
Diarrhea is a sudden increase in frequency and looseness of the stool.
The main concern with diarrhea is if the child is becoming dehydrated or is acting sick or if the diarrhea is lasting more than 1 to 2 weeks. A child with two or three watery stools who is happy and drinking well is not a concern. They may also pass some intermittent green stools. They may have up to 10 to 12 stools per day. If a breast-fed baby is fussy and having persistent green and more watery stools than normal, this may indicate an infection.