When to go in person or call 911
- No pee in 8 hours (fewer than 4 wet diapers a day for babies), no tears, or a very dry mouth
- Green or bloody vomit, blood in the stool, or black stool
- Severe or constant belly pain, especially low on the right side
- A child who is very sleepy, hard to wake, or confused: go to the ER or call 911
- Vomiting after a head injury, or any vomiting with fever in a baby under 3 months