Lyme disease develops when an infected tick transmits bacteria into your bloodstream. The infection typically starts with a rash and flu-like symptoms, but if untreated, it can spread to joints, the heart, and the nervous system. Understanding how the disease progresses, what symptoms to watch for, and how doctors diagnose it helps you recognize when medical attention matters.

These articles explore what happens in your body when Lyme disease takes hold, how antibiotics work to stop the infection, and what the long-term effects can be. You'll find information about tick prevention, how to remove a tick safely, and what to expect during treatment—practical details that matter whether you're concerned about a recent bite or trying to understand symptoms that won't resolve.