When a Fever Means You Should Go to the ER

by | Sep 25, 2025 | Blogs

What You Need to Know About Fevers This Cold and Flu Season

As fall arrives, so does cold and flu season, and with it, a rise in fevers and other common symptoms of seasonal illness. Fever is one of the body’s natural responses to infection, but not all fevers should be treated the same. So how do you know when a fever is serious enough to warrant a trip to the emergency room?

While the average body temperature hovers around 98.6°F, this can vary slightly from person to person. A fever simply means your temperature is higher than normal, but it’s not just about the number on the thermometer. When paired with certain symptoms, a fever may be a sign of something more serious.

When to Go to the ER for a Fever

If you or a loved one has a fever along with any of the following symptoms, it’s important to seek emergency care right away.

  1. Fever over 103 degrees Fahrenheit
  2. Severe vomiting or signs of dehydration, such as dry mouth, dizziness, or reduced urination
  3. Confusion or loss of consciousness
  4. Trouble breathing
  5. Severe pain
  6. Fever lasts more than three days

Common Fall Illnesses That May Be Accompanied by a Fever 

During the fall and winter months, several illnesses that cause fever become more common. Some of these can lead to serious complications if not treated promptly, especially in young children, older adults, or individuals with underlying health conditions, such as:

  • Flu
  • RSV
  • COVID-19
  • Other viral infections
  • Common Cold
  • Stomach bug

When you’re experiencing multiple symptoms, getting an expert diagnosis can be key to receiving prompt and effective treatment.

We’re Here for You – Discover 24/7 Emergency Care

At NW Indiana ER & Hospital, your health and safety are our top priorities. We are open 24/7, including nights, weekends, and holidays, to provide fast, expert care when you need it most.

With an on-site advanced laboratory, we can quickly test for common infections, deliver accurate diagnoses, and begin treatment right away, helping you feel better, faster.

Disclaimer: As a service to our readers, NW Indiana ER & Hospital and Nutex Health state no content on this site, regardless of date, should ever be used as a substitute for direct medical advice from your doctor or other qualified clinician.

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