What is a Fever?

A fever is a temporary increase in your body temperature, usually due to an infection or illness. It is an important first line of defense your body has in fighting off an infection. But if the temperature is too high, it can cause serious complications. The medical definition of a fever is a temperature of 100.4°F (38°C) or higher. Generally, a fever is considered a temperature above 100.3°F (or 38.5°C). A fever can be caused by an infection, illness, allergic reaction, or autoimmune disorder. If a fever persists for more than a few days, it is important to speak to a medical professional.

Signs and Symptoms of a Fever

One of the most common symptoms of a fever is an elevated body temperature. A person can also experience other flu-like symptoms like chills, fatigue, body aches, congestion, coughing, and dehydration. Depending on the underlying cause of the fever, other symptoms may present. It is important to watch for signs of dehydration, such as dry mouth, thirst, and dark-colored urine.

Risks Associated with High Temperature Fevers

A high fever is a temperature of 103°F (or 39.4°C) and above, and can be a sign of a severe underlying infection or illness. High fevers can cause serious complications, such as seizures, brain damage, and death. For children, a fever can be especially concerning, as their immune systems may be more easily compromised. If a fever persists for more than 3 days, it is important to seek medical advice.

Fevers can be a scary symptom, but it is important to remember that they are the body’s way of fighting off infection. While it is important to take preventative measures to avoid infection, it is also important to recognize the signs and symptoms of a fever in order to address any underlying infections quickly and effectively.