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Why test for excessive thirst?
Feeling very thirsty and passing urine more often, especially at night, can be early signs of raised blood sugar. Blood tests can measure HbA1c, which reflects average blood sugar over about three months, and check kidney function.
Recommended tests
Diabetes check (HbA1c)
Compare pricesShows average blood sugar over the past two to three months
HbA1c
When to see your GP
See your GP promptly if thirst comes with weight loss, tiredness or blurred vision. Seek urgent help (NHS 111 or 999) if you feel very unwell, are vomiting or have fruity-smelling breath.
Why test for excessive thirst?
Symptom-led matching
See the tests commonly used to investigate this symptom
UKAS accredited labs
Every listed provider uses UKAS-accredited UK laboratories
Clear turnaround
Typical result times shown alongside price and biomarker coverage
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