Step 4: Read and complete the decision guide to learn more about your symptoms.
Fever in Adults
Okay. If your fever is very high (more than 104 degrees F) or if you have any of those concerning symptoms with even a low-grade fever, it's important you get prompt medical attention. You could have a serious condition. Two examples out of many include meningitis or a pulmonary embolus (blood clot in the lung). And if you cannot drink enough fluids with a fever, you may soon become dehydrated.
You can return to this decision guide after your medical evaluation to learn about other causes of fever.