Unexplained Fever Requires Persistent Tracking and Interpretation
A high fever lasting more than 3 weeks without a diagnosis is not a simple cold. A systematic search is needed to uncover the hidden disease.
Fever of Unknown Origin (FUO) refers to a condition with a temperature exceeding 38.3°C for more than 3 weeks, where the cause remains undiscovered despite a week of standard investigations.
Rather than a rare disease, it is more likely an atypical presentation of common conditions like tuberculosis, endocarditis, autoimmune diseases, or neoplasms.
Therefore, instead of vague fear, a stepwise precision examination and professional interpretation are required to find the hidden cause.
