Bursae – are fluid-filled sacs that cushion areas of friction between tendon and bone or skin. The major bursae are located adjacent to the tendons near the large joints, such as the shoulders, elbows, hips, and knees and heels. Humans have bursae throughout the body. When the condition called bursitis occurs, the normally slippery bursa becomes swollen and inflamed.
Two types of bursits:
- Acute disease: – when the affected joint takes on a reddish color, it is painful and is usually caused by infection.
- Chronic disease: it may be the result of having suffered an acute bursitis in advance, or another cause is that the patient has had joints injuries on several occasions. (more…)