Ddx for fever

1. Infection: Viral, bacterial, fungal, parasitic infections can cause a fever.

2. Inflammatory conditions: Conditions such as rheumatoid arthritis, lupus, and inflammatory bowel disease can cause a fever.
3. Autoimmune diseases: Conditions such as systemic lupus erythematosus or vasculitis can lead to fever.
4. Medications: Certain medications, such as antibiotics, can cause a fever as a side effect.
5. Heat exhaustion or heat stroke: Overexposure to high temperatures can lead to fever.
6. Malignancy: Certain types of cancer can cause fever as a symptom.
7. Endocrine disorders: Conditions such as hyperthyroidism can cause fever.
8. Blood disorders: Conditions such as leukemia or lymphoma can lead to fever.
9. Neurological disorders: Conditions such as meningitis or encephalitis can cause fever.
10. Drug withdrawal: Withdrawal from certain drugs, such as alcohol or opioids, can lead to fever.