Symptoms of a deltoid muscle strain may include: The rotator cuff is a group of tendons and muscles that cover the top of the humerus (a bone in your upper arm) and attach to the shoulder.

The main symptom of muscle strain is pain. The pain might be most severe right after an injury but can continue for a short period. You also might experience symptoms like: Difficulty moving your ...

If you experience severe or sudden calf pain or suddenly have trouble moving or walking, it’s time to contact a healthcare ...