Most cases of this don’t need to be seen by us. The main reason to be seen urgently the same day or next day is if there is blood in the diarrhea. This can indicate an infection that may require medical treatment. Virtually all other causes of diarrhea in kids don’t need medical treatment. Search “diarrhea” on AskDrSears.com for a very detailed discussion on how to solve this without seeing us. If diarrhea persists for a few weeks, and you’ve tried the steps on our website, call us to be seen.