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- When a fever lasts for more than three weeks — constantly or on several occasions — and there is no clear cause, it's usually called a fever of unknown origin. In these cases, you may need to see specialists in one or more medical fields for further evaluations and tests.
www.mayoclinic.org/diseases-conditions/fever/diagnosis-treatment/drc-20352764
May 22, 2023 · When to worry about fever. If you have a fever over 104°F (40°C), you should call your doctor. Seek medical help right away if you have a fever along with any of these symptoms: seizure; loss of consciousness; confusion; stiff neck; trouble breathing; severe pain anywhere in the body; swelling or inflammation of any part of the body
- hhp_info@health.harvard.edu
May 7, 2022 · A fever is a temporary rise in body temperature. It's one part of an overall response from the body's immune system. A fever is usually caused by an infection. For most children and adults, a fever may be uncomfortable. But it usually isn't a cause for concern.
A fever of unknown origin (FUO) is a fever of at least 101°F (38.3°C) that lasts for more than three weeks or occurs frequently without explanation.
Oct 25, 2024 · If you suspect that you have a fever but don’t have a thermometer around (and don’t feel like investing in one), doctors say there are a few signs of a fever to look out for: You feel off....
Apr 21, 2020 · 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 is the body’s way of battling an illness. Although...
Nov 15, 2023 · A fever is when you have a brief rise in body temperature that’s higher than your normal body temperature. It’s also called a high temperature, hyperthermia, or pyrexia.
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Sep 17, 2019 · A fever in adults is usually not something to worry about, but if the fever is very high or lasts for longer than 3 days, it could be the cause of a more serious illness.
