Signs of dehydration
Common symptoms include dry mouth, thirst, dizziness, headache, weakness, reduced urination and dark-coloured urine.
More severe dehydration can cause confusion, fainting, rapid heartbeat and extreme tiredness.
Medical assessment and treatment
The doctor will assess your symptoms, fluid intake, urine output and general condition.
Treatment may involve oral rehydration, rest, medication for the underlying illness or IV fluids when medically appropriate.
Heat and dehydration prevention
Drink regularly, limit prolonged sun exposure and avoid excessive alcohol during very hot weather.
People experiencing vomiting or diarrhoea should replace both fluids and electrolytes.
Medical assessment
Common symptoms we assess
Patient-focused service
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Helpful information
Frequently asked questions
How do I know if I am dehydrated?+
Thirst, dry mouth, dizziness, weakness and dark or reduced urine are common signs. Severe symptoms require medical assessment.
Do I need an IV drip?+
Not necessarily. Many patients can rehydrate orally. A doctor should determine whether IV fluids are medically appropriate.
When is dehydration dangerous?+
Confusion, fainting, inability to drink, very low urine output, rapid heartbeat or severe weakness require urgent medical attention.
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