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Symptom guide

Night sweats

Find out about night sweats, including what they are and what might be causing them, and when to get medical help.

About this information

This NHS content is written for people in England. Services, contact routes and treatment arrangements may differ in other countries.

What night sweats are

It's normal to sweat during the night if the room or your bedding is making you too hot.

Night sweats are when you sweat so much that your night clothes and bedding are soaking wet, even though where you're sleeping is cool.

Adults and children can get night sweats.

See a GP if:

  • you have night sweats regularly that wake you up or worry you
  • you also have a very high temperature (or feel hot, cold or shivery), a cough or diarrhoea
  • you have night sweats and you're losing weight for no reason

Treatment for night sweats from a GP

If you have night sweats, you will not usually need treatment, but the GP will want to check if you have any other symptoms.

If you're taking medicine and the GP thinks it might be causing night sweats, they may prescribe a different one.

Causes of night sweats

The most common reasons for night sweats are:

Sometimes the cause of night sweats is unknown.

Night sweats

Symptoms

Night sweats

Causes

Night sweats

Medical treatments

Night sweats are when you sweat so much that your night clothes and bedding get soaking wet.

Common causes of night sweats include the menopause, anxiety, medicines, low blood sugar, alcohol or drug use, and excessive sweating (hyperhidrosis).

Treatment is not usually needed for night sweats. But if medicine you’re taking may be causing night sweats, your GP may prescribe a different one.

Content supplied by the NHS website

Content supplied by the NHS website, refreshed 19 August 2026. View the original NHS article ↗

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