‌‌The sternum – sometimes called the breastbone – is the flat bone in the center of your chest. Your ribs and collarbone connect to your sternum. A break in your sternum is also known as a sternal ...

Sternum popping can be the result of muscle strain, anxiety, arthritis, or other causes. While a popping sternum isn’t always a cause for concern, consider seeking medical help if it’s accompanied by ...