What most people call the shoulder is really several joints that combine with tendons and muscles to allow a wide range of motion in the arm — from scratching your back to throwing the perfect pitch to cradling your baby's head.
Mobility has its price and may lead to increasing problems, resulting in pain. You may feel pain only when you move your shoulder, or all of the time. The pain may be temporary or it may continue and require medical diagnosis and treatment. Learn more about common shoulder problems here: http://orthoinfo.aaos.org/topic.cfm?topic=a00065
If you're feeling any discomfort in your shoulder, why not talk to a specialist who can help? Dr. Stephan Yacoubian is a Board Certified Orthopedic Surgeon who specializes in problems of the shoulder and emphasizes conservative non-surgical treatment for most issues.