Fever, childhood
What causes a high temperature?
Most fevers are caused by infections or other illnesses.The high body temperaturemakes it more difficult for thebacteria and viruses that cause infections to survive.
Common conditions that can cause fevers include:
- upper respiratory tract infections (RTIs)
- flu
- ear infections
- roseola a virus that causes a temperature and arash
- tonsillitis
- kidney or urinary tract infections (UTIs)
- common childhood illnesses, such as chickenpox and whooping cough
Your child's temperature can also be raised after vaccinations , or if they overheat because of too much bedding or clothing.
Medically Reviewed by a doctor on 21 Dec 2018
Introduction
A fever is a high temperature. As a general rule, in children a temperature over 37.5C (99.5F) is a fever.
What causes a high temperature?
Most fevers are caused by infections or other illnesses.The high body temperaturemakes it more difficult for thebacteria and viruses that cause infections to survive. Common conditions that can cause
When to seek urgent medical advice
Contact your GP or health visitor urgently if your child: is underthree months old and has a temperature of 38C (101F) or above is between three and six months old and has a temperature of 39C (102
Treating a fever
If your child has a fever, it'simportant to keep them hydrated by giving them plenty of cool water to drink. Babies should be given plenty of liquids, such as breast milk or formula.Even if your chil
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