Signs and symptoms of severe dehydration in a young child may include:

• A lack of interest in playing and extreme sleepiness. (The child may be so sleepy that he or she is difficult to wake up.)
• A dry mouth and tongue.
• A sunken soft spot (fontanel) on top of the head.
• Sunken eyes without tears.
• Fast breathing and rapid heartbeat.
• No urination for over 12 hours.

Severe dehydration is a medical emergency. Call 911 or other emergency services immediately.