A Regular Fever vs. a Low-Grade Fever (LGF) You can monitor your fever by simply taking your temperature. A low-grade fever is often classified as an oral temperature that is above 98.6° F (37° C) but lower than 100.4° F (38° C) for a period of 24 hours.1 A fever of 103° or higher is more concerning in adults. Mar 19, 2018 · When the body temperature is above 99 degrees F, but below 103 degrees F, it is considered as low-grade fever in adults. The probable causes of low-grade fever are many, of which some include allergies, bacterial infection, viral disease, fungal infection, and medicine side effects.
Aug 30, 2018 · A persistent low-grade fever isn’t usually cause for concern. It will typically go away on its own. We’ll tell you some of the possible causes, from minor infections to more serious (but also. Low-Grade Fever Information Including Symptoms, Diagnosis, Treatment, Causes, Videos, Forums, and local community support. Find answers to health issues you can trust from Healthgrades.com.