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Q.

What causes a fever in babies?

Related Topics: Fever, Baby
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A.

There can be many causes for a baby’s fever. Dehydration is one. Or the infant might be over-bundled with clothes in a relatively warm environment. The rule of thumb is to dress your baby in just one more layer of clothing than you are comfortable in.

Most commonly, fever is caused by an infection. The body’s immune system senses the “foreign invader” - such as bacteria or a virus - and sends a chemical message to the brain’s temperature center instructing it to crank up the heat inside the body. This has many advantages:

  • Some bacteria and viruses don’t like the higher temperature and are then more easily destroyed by the immune system.
  • The higher body temperature helps the body to ward off the infection.

In this way, fever is actually our friend: it lets us know that an infection may be brewing and it helps to fight off the infection.

This answer should not be considered medical advice...down arrowThis answer should not be considered medical advice and should not take the place of a doctor’s visit. Please see the bottom of the page for more information or visit our Terms and Conditions.up arrow

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