Bursitis is an inflammation or irritation of a sac called a bursa. These sacs are located throughout your body and function to help ease friction and rubbing between tissues such as bone, muscle and tendons. These sacs are fluid filled and are located in your elbow, shoulder, hip, buttocks, knee and other joint areas. Bursitis is a common condition in adults especially over 40. The main cause of bursitis is either repeated pressure on an area or by using the joint too much. Some of the symptoms of bursitis are: Pain is the most common symptom which can build up…