What Is the Trapezius Muscle? Trapezius muscles are large, paired, triangular muscles in the back of your neck and upper back. They extend down your back, but they’re mostly involved in the movements ...

A pulled muscle is an injury to your muscle fibers. Muscle fibers are the large cells that make up your muscles. Your muscles allow you to move when they contract and relax. Many people use the terms ...

This article was reviewed by Craig Primack, MD, FACP, FAAP, FOMA. A muscle strain, or a pulled muscle, is among the most common injuries affecting people of all ages, particularly those engaging in ...

An abdominal muscle strain is an injury that happens when muscles in your stomach area stretch too much or tear. You might also hear it called a pulled stomach muscle. Anyone can strain a stomach ...

A pulled hamstring is a muscle injury resulting from a strain or tear in one or more of the muscles at the back of the thigh. When it happens, there may be a sudden, severe pain and a popping or ...

When a sprain occurs, you have overstretched, twisted, or damaged a ligament, usually from a sudden event (i.e. twisting your ankle while running). Ligaments are bands of tissues that connect the ...

Your armpit, also known as the axilla, contains a large collection of lymph nodes, hair follicles, and sweat glands. A number of things can cause pain in the hollow created by your chest wall, muscles ...

The obliques are the muscles running down either side of the abdomen. Pain in these muscles often occurs due to a type of injury known as “side strain.” There are two sets of oblique muscles: external ...