The shoulder is a very complex piece of machinery. Its elegant design gives us the ability to do many things. This design gives the shoulder joint great range of motion but not much stability. As long as the parts of this elegant machine are in good working order, the shoulder can move freely and painlessly. An injury to the shoulder, or wear and tear in the parts of the shoulder, can lead to pain with movement or stiffness in the shoulder.
Many people are probably familiar with the term bursitis .
Any pain in the shoulder is sometimes mistakenly referred to as bursitis. The term bursitis really only means that the part of the shoulder called the bursa is inflamed. In reality, there are many different problems that can lead to symptoms from inflammation of the bursa, or bursitis. Impingement is one of those things that can cause bursitis. Let's see how this machine called the shoulder is put together and what might cause a breakdown .