Glands (known as lymph glands or lymph nodes) swell near an infection to help your body fight it.
Sometimes a gland on just one side of the body swells.
You might also have other symptoms, such as a sore throat, cough or high temperature.
Swollen glands should go down within 1 to 2 weeks, depending on the cause.
You have swollen glands and:
- they're getting bigger or they've not gone down within 1 week
- they feel hard or do not move when you press them
- you're having night sweats or have a very high temperature (you feel hot, cold or shivery)
- you have no other signs of illness or infection
- you have swollen lymph glands just above or below your collar bone (the bone that runs from your breastbone to each of your shoulders)
- you have swollen glands and you're finding it very difficult to swallow or have difficulty breathing
You can call 111 or get help from 111 online.
Do not self-diagnose. See a GP if you're worried.
A GP will be able to recommend treatment depending on the cause, which might include antibiotics (antibiotics do not work on viral infections).