Educational use only: Symptom.Today is an educational tool and does not provide medical advice, diagnosis, or treatment. Results are not a substitute for professional medical care. If symptoms are severe, worsening, or concerning, seek medical attention immediately. In an emergency, call your local emergency number.
← All symptomsSYMPTOM
fever of 101 F (38.3 C) or higher
Explore what fever of 101 f (38.3 c) or higher could mean — from the most common explanations to dangerous causes you should never ignore.
MOST LIKELY
MUST NOT MISS
No critical matches.
When to seek urgent help
Seek urgent care if fever of 101 f (38.3 c) or higher is sudden and severe, accompanied by fever, neurological changes, breathing difficulty, or rapidly worsens.
FAQ
What causes fever of 101 f (38.3 c) or higher?
fever of 101 F (38.3 C) or higher can have many causes — see the matching conditions above.
Is fever of 101 f (38.3 c) or higher dangerous?
Most cases are benign, but seek care if it is severe, persistent, or paired with red-flag features.
What should I do next?
Try the analyzer to add severity, duration, and other symptoms for a sharper match. Always confirm with a clinician.