What is a primary indication of dehydration in a child?

Little or no tears when crying is a primary indication of dehydration in a child because tears are produced by the body's hydration levels. When a child is dehydrated, the body conserves water, which can lead to a reduction in tear production. This is a visible sign that parents and caregivers can easily observe when the child is crying, indicating that the child may not be getting enough fluids.

In contrast, excessive sweating and high energy do not necessarily indicate dehydration; rather, they can be consistent with a child who is active and healthy. Frequent urination can occur for various reasons, and fever alone does not directly signify dehydration without other accompanying symptoms. A bright, pink tongue is typically a sign of adequate hydration, as dehydration often results in a dry, pale, or cracked appearance of the tongue. Understanding these signs helps caregivers identify and respond to potential dehydration in children promptly.