Long-lasting low-grade fevers can occur for many reasons. Things like viral or bacterial infections, stress, medications, health conditions, like thyroid issues or autoimmune diseases, and many other ...

A low-grade fever describes a body temperature slightly above normal. Most people consider a body temperature above 99.5 F but not higher than 100.3 F (38 C) a low-grade fever. Though a low-grade ...

Maggie O’Neill is a health writer and reporter based in New York who specializes in covering medical research and emerging wellness trends, with a focus on cancer and addiction. Prior to her time at ...

Many illnesses can cause a fever, which is when your body temperature rises over 100.4°F. In some cases, your body temperature may be elevated, but not quite as high as a fever. This is often referred ...

Gastroenteritis is a common condition that causes an upset stomach, including diarrhea and abdominal cramping. But gastroenteritis symptoms aren’t limited to your stomach. You can also experience a ...

Severe illness can cause extremely high temperatures in adults that can be life threatening. A high-grade fever from a rectal measurement is typically 104.1–106.0°F (40–41.1°C). When certain pathogens ...

The human body temperature is typically about 98.6°F, but it fluctuates throughout the day. A low grade fever is when the body temperature rises slightly, usually between about 100.5°F and 102.2°F.