Signs of Lyme disease include fever, chills, muscle aches, and fatigue, progressing into arthritis-like symptoms, heart palpitations, and a red skin rash that looks like a target.

Migraine symptoms are caused by a complex interaction among neurotransmitter chemicals, blood vessels, and nerves in the brain. Learn more about the different symptoms to expect at each stage.

Signs and symptoms articles from across Nature Portfolio Signs and symptoms are abnormalities that can indicate a potential medical condition. Whereas a symptom is subjective, that is, apparent ...

This article looks at symptoms of Irritable bowel syndrome (IBS), treatments to ease those symptoms, and ways to prevent an IBS attack from happening.

What defines a fever? And when should you seek help? Learn about the causes, signs, and symptoms of fever.

You likely know about Lyme Disease, Alpha Gal and Rocky Mountain Spotted Fever, but health officials are sounding the alarm ...

Here’s how to tell the difference between mosquitoes, chiggers and no-see-ums by their bites and how to treat and prevent them.