Dehydration is a condition caused by a loss or lack of fluids in the body and may require hospitalization. Here’s how you can tell if your child is dehydrated, what to do about it, and when to seek urgent medical treatment. For same-day care, visit AFC Urgent Care Boulder. The clinic is open seven days a week and always accepts walk-in patients. Dehydration causes and symptoms Dehydration has many causes, including vomiting, diarrhea, fever ...