Medically reviewed by Amy Kwan, PT Your latissimus dorsi (your "lats") is a broad, flat, triangle-shaped muscle that spans ...

Pain between the shoulder blades is a frequent complaint that can arise from a variety of factors, some minor and others more ...

and arm movements. Injuries to these muscles can cause upper back pain. The feeling can be a dull ache or a sharp pain. Exercise may increase the risk of muscle strain or tear. This is ...

A pulled (or strained) muscle could take a few days to feel better. Severe injury could take weeks to months. Find out what ...

"My shoulder pain wakes me up if I roll over ... The rotator cuff consist of four muscles within the shoulder, connecting the upper arm (humerus) to the shoulder blade (scapula).