Medically reviewed by Scott Zashin, MD Key Takeaways Muscle strains can happen when a muscle is overstretched and may feel ...

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 ...

Impingement/bursitis occurs when the rotator cuff tendons become irritated or compressed as they pass through a narrow space in the shoulder. This often leads to inflammation and pain. Tears may ...

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 ...

Many people have heard the term shoulder instability but have wondered what that means. So, what is shoulder instability? Many structures are responsible for stabilizing your shoulders. This includes ...

Shoulder pain can significantly interfere with your exercise activities, but you can still safely perform an upper-body workout with a shoulder injury. The rotator cuff is a group of four muscles — ...

People with sartorius muscle pain may have pain in their knee or the front of their hip. Certain exercises can help strengthen the muscle and reduce pain. The sartorius is the longest muscle in a ...

Chest pain can be disconcerting, but it’s important to remember that not all discomfort signals a serious health condition like a heart attack. In fact, the culprit behind the pain in your chest may ...