We include products we think are useful for our readers. If you buy through links on this page, we may earn a small commission. The normal body temperature for an adult is around In this article, we discuss the normal ranges of temperature for adults, children, and babies. We also consider factors affecting body temperature, and when to call a doctor.
A fever is a common side effect of illness like the flu. It happens when there is a temporary rise in body temperature. A fever is usually a sign that your immune system is busy fighting an infection or other illness. In babies and toddlers even a slight fever may be a sign of a serious illness. In adults a fever is not usually serious or life-threatening. However, sometimes a fever in adults can be a warning signal that something is not right.
If you have developed any of these symptoms you should use our coronavirus guide to find out what to do next. Do not go to your GP, pharmacy or hospital. Your normal body temperature is approximately 37C. A fever is usually when your body temperature is You may feel warm, cold or shivery.
Back to Health A to Z. Many things can cause a high temperature, but it's usually caused by your body fighting an infection. Get advice about coronavirus symptoms and what to do.