It is contagious and caused by viruses and bacteria. A disorder that affects muscle and soft tissue characterized by chronic muscle pain, tenderness, fatigue and sleep disturbances.

The trapezius muscle extends from the back of your ... hours or trauma or injury to the neck and shoulders. Symptoms Ache or sharp pain in the upper back, neck, and shoulders.

This article will discuss the possible causes, symptoms ... which controls the rhomboid muscles the spinal accessory nerve, which controls the trapezius muscle the long thoracic nerve, which ...