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For most children and adults, a fever may be uncomfortable. But it usually isn't a cause for concern. For infants, however, even a low fever may mean there's a serious infection. Fevers generally go away within a few ...
In addition to an elevated temperature, you may experience the following symptoms: Chills, feeling cold, shivering and shaking. Body aches and headaches. Fatigue (tiredness). On and off or constant sweating. Flushed c...
It’s typical for body temperature to fluctuate throughout the day. You have a fever if your temperature is above 100.4°F (38°C). Depending on how high it is, you may need to call your doctor. A...
Fever Symptoms A fever is a sign of an illness or infection. When you have one, you may notice these symptoms: Chills or shivering Sweating Body aches Headache Lethargy (feeling weak) Being...
Fever isn’t a disease—it’s actually your body’s way of fighting off infections. When your temperature spikes, it’s a signal that something inside needs attention. From viral to parasitic causes, fevers can stem from a...
What defines a fever? And when should you seek help? Learn about the causes, signs, and symptoms of fever.
Fever is a common symptom of most infections such as colds, flu, and gastroenteritis (also referred to as stomach flu), and thus a risk factor for fever is exposure to infectious agents. Typical infections that may ca...
A person has a fever when their temperature is higher than 100°F (38°C). Learn about fever types, symptoms, causes, and treatments in this article.
If you are experiencing high body temperatures or a prolonged fever, our expert doctors can evaluate your symptoms, help determine the cause, and discuss your treatment options.
Older children and adults should get medical help for an oral temperature of 104 F or higher or if they have accompanying symptoms like rash, severe headache, or stiff neck. Fever is an elevation in the body's tempera...
