Hypothermia

Also called Low body temperature

Hypothermia is when your body temperature drops below 35°C (normal is about 37°C). It is usually caused by being in a cold place, or by cold water. Babies, older people and people who have been drinking alcohol are at higher risk. It is a medical emergency.

Last updated Nov 9, 2026

What it is

While waiting for help, move the person somewhere warm, remove wet clothing, wrap them in blankets and give warm, sweet drinks if they are alert.

Do not rub their arms and legs or use a hot bath or hot water bottles, as this can be dangerous.

Common signs

  • Shivering
  • Pale, cold and dry skin
  • Slurred speech
  • Slow breathing
  • Tiredness or confusion
  • Shivering stopping in severe cases

How it is usually diagnosed

  • Body temperature measurement
  • Blood tests and heart monitoring in hospital

Records worth keeping

Keeping these together makes each appointment easier, especially when you see a new doctor:

  • Emergency department or discharge letters
  • Notes on what happened

Questions to ask your doctor

  • Am I at higher risk in cold weather?
  • Could any of my medicines affect how I cope with cold?
  • How can I keep my home warm enough?

When to get help right away

Call 112 or go to the nearest emergency department if you have:

  • Shivering with confusion, slurred speech, slow breathing or drowsiness: call 112

This page is general information. It is not a diagnosis and does not replace a doctor who knows your history. Medfold keeps your records organised; it does not interpret them.

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