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 ...

Possible causes of pain in the middle of the biceps include muscle strain, bruising, and more. In rare cases, it can be due to a heart attack. Treatments will depend on the cause. The biceps is the ...

Muscle strains and sprains are common injuries among teen athletes, often causing distress for athletes and their parents. Understanding the causes, recognizing the symptoms, and knowing how to ...

A calf strain is an injury to the muscles of the back of the lower leg. These injuries are most often caused by minor tears of muscle fibers. Usually, the bulk of the muscle tissue remains intact.

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 ...

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 ...

Myalgia often results from muscle strain, injury, or overuse. Chronic conditions like fibromyalgia may require treatment to ease myalgia. Using stress management techniques, like journaling, ...

The knees and back work together to support movements like walking or playing tennis. When one of these areas becomes painful, it may place strain on the other. Injuries, poor posture, or arthritis ...

Your rhomboid muscles connect your shoulder blade (scapula) to your spine. If your rhomboid muscles hurt, you’ll feel it in your back and shoulders. “The rhomboids can become painful because of ...