What to watch with STI Test and fatigue?

When combining STI (sexually transmitted infection) testing with fatigue, caution is warranted: fatigue is a highly non-specific symptom that can be caused by STIs (e.g., HIV, syphilis, hepatitis) as well as many other factors such as stress, sleep deprivation, infections, or nutritional deficiencies. A positive STI test does not automatically mean the fatigue is due to that infection – asymptomatic sensitization or false positives are possible. Conversely, a negative test may not rule out an STI if tested during the window period. Many consumer STI tests lack clinical validation and can provide false reassurance. For persistent fatigue, a full medical workup is recommended, including thyroid function, iron status, vitamin D, and other common causes. The evidence linking STI tests directly to fatigue is weak; this is a practice-based recommendation. Sources: none specific in context.