What is dehydration?

Dehydration occurs when fluid losses exceed intake and the body lacks sufficient water. Diarrhea, vomiting, fever, sweating or inability to drink can cause it. Fluid and electrolyte balance supports organ function. Babies, older adults and people with certain conditions can deteriorate faster.

Recognizing symptoms

1. Early signs Thirst, dry mouth, dark or reduced urine and dizziness may occur. Urine color alone is not definitive and can change with foods or medicines. Older adults may not feel thirst strongly. 2. Children Fewer wet diapers, reduced tears, dry mouth and unusual drowsiness matter. Babies can worsen quickly. Adult fluid or product advice should not be transferred directly to children. 3. Assessing causes Duration, vomiting, fever and medicines guide assessment. Heart or kidney disease can require different fluid plans; one daily liter target does not suit everyone.

Fluid support and emergencies

4. Mild losses Small frequent sips may be tolerated when swallowing is safe. Suitable oral rehydration products can help with vomiting or diarrhea losses; follow mixing instructions precisely. Sugary drinks are not universally equivalent. 5. Monitoring Watch urine, general condition and ability to retain fluid. Follow prescribed restrictions where relevant. Never give oral fluids to someone unconscious or unable to swallow. Deterioration requires assessment. 6. Urgent signs Confusion, little or no urine, fainting, severe weakness or inability to retain fluids need prompt care. Rapid breathing, cold pale skin or inability to wake may be emergencies. Seek help earlier for infants and vulnerable people.