Q. I was lifting in the gym last week and felt a pop on the outside of my left elbow. I had severe pain and noted a deformity in the muscle. My doctor sent me to an orthopedic surgeon who told me I ...

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 ...

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 triceps muscle crosses two major joints in the body -- the elbow and the shoulder. It's a critical component of upper body biomechanics and is involved in almost every arm movement that exists.