While <a href="https://www.womenshealthmag.com/fitness/a32005309/why-do-muscles-get-sore/" id="1fb5b9a8-f032-3608-a997-2a906f1960cf"> feeling sore </a> after a challenging (or new) workout is totally normal, it's important to note that not all types of aches and pains are just byproducts of your bods natural healing process. One common place this comes into play is with an IT band injury. What is the IT band, exactly? Here's everything you need to know.