Deltoid Pain

The deltoid is a round muscle that goes around the top of your upper arm and shoulder. The main function of the deltoid is to help you lift and rotate your arm. There are three parts of the deltoid muscle that connect your collarbone, shoulder, and shoulder blade to your upper arm. The three parts are referred to as the anterior, middle, and back.

Read on to learn more about what to expect from deltoid pain and how it’s treated.