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Fever is also known as hyperthermia, pyrexia, or elevated temperature. It describes a body temperature that’s higher than normal. Fever can affect children and adults. A short-term increase in...
What is a fever? A fever is when your body temperature is higher than normal. The average body temperature is around 98.6°F (37°C). Your average body temperature may be higher or lower than...
According to the US National Library of Medicine's MedlinePlus resource, a fever (aka, pyrexia) is technically a higher-than-normal body temperature. 3 That normal body temperature can vary from...
Fever can be defined as any elevation of body temperature above the normal level. Persons with fever may experience daily fluctuations of 5–9 °F above normal; peak levels tend to occur in the late afternoon. Mild or moderate states of fever (up to 105 °F [40.55 °C]) cause weakness or exhaustion but are not in themselves a serious threat to health.
The definition of fever is an elevation in body temperature or a high body temperature. Technically, any body temperature above the normal oral measurement of 98.6 degrees Fahrenheit (37 Celsius) or the normal rectal temperature of 99 F (37.2 C) is considered elevated.
A person has a fever if their body temperature rises above the normal range of 98–100°F (36–37°C). It is a common sign of an infection. As a person’s body temperature increases, they may ...
You have a fever if your rectal temperature is 100.4°F (38°C) or your oral temperature is 100°F (37.8°C). In adults and children over 3 months, a temperature of 102.2°F (39°C) or higher is ...
A fever is a body temperature that is higher than normal. A normal temperature can vary from person to person, but it is usually around 98.6 °F (37 °C). A fever is not a disease. It is usually a sign that your body is trying to fight an illness or infection. Infections cause most fevers. You get a fever because your body is trying to kill the ...
A fever is the body's natural reaction to infection. When you get sick from a virus or bacteria, one of your immune system's defenses is to raise your body temperature. It does this because pathogens can't multiply as well at temperatures greater than 98.6 degrees F. 1. The physical act of shivering or shaking from the chills can also raise ...
A fever is any body temperature elevation over 100 °F (37.8 °C). Description A healthy person's body temperature fluctuates between 97 °F (36.1 °C) and 100 °F (37.8 °C), with the average being 98.6 °F (37 °C). The body maintains stability within this range by balancing the heat produced by the metabolism with the heat lost to the environment.