Why Are High Fevers Dangerous And Sometimes Life Threatening?

Why Are High Fevers Dangerous And Sometimes Life Threatening? The fever is the immune system’s attempt to kill the infection. Very rarely, however, this immune response can result in a fever high enough to cause permanent harm or even life-threatening complications due to overheating. Why is a high fever considered dangerous? Fevers above 104° F

What Causes Fever Without Infection?

What Causes Fever Without Infection? Rare causes of unexplained fevers include (but are not limited to) taking certain medications, adrenal disease, hematomas, hyperthyroidism, pulmonary emboli , and previously undetected thrombophlebitis. Despite extensive investigation, the cause of the fever is not identified in 5-15% of people with FUOs. Can you have a fever without an infection?