What causes the shoulder blade to feel like it has a deep knot?

What causes the shoulder blade to feel like it has a deep knot?

1. Introduction A deep knot in the shoulder blade is primarily caused by a myofascial trigger point, a localized muscle spasm resulting from poor posture, muscular overuse, or cervical spine pathology. This dense, palpable nodule forms when individual muscle fibers remain locked in a continuous state of contraction, severely restricting blood flow and creating a … Read more