Mon, 04 May 2026 15:22:04 +0000

Low-Grade Fever Hit You Fast—Here’s the Truth You Need to Know Feeling subtly off? A low-grade fever might be the culprit—but do you really understand its meaning, causes, and when to worry? Many people experience occasional low-grade fevers, often dismissing them as minor or temporary. But knowing the truth about this common symptom can help you respond wisely and recognize when medical attention is needed. ### What Is a Low-Grade Fever? A low-grade fever generally refers to a body temperature between 99°F (37.2°C) and 100.4°F (38°C), slightly above the normal range of 98.6°F (37°C). Unlike high fevers that signal a severe infection, low-grade fevers often develop gradually and may last for several days. While they feel mild, they still represent your body’s natural immune response fighting off an invader.