Achilles tendinitis is a common condition that occurs when the large tendon that runs down the back of your lower leg becomes irritated and inflamed. The following link provides helpful insight in the diagnosis and treatment of this painful condition.
Arthritis is inflammation of one or more of your joints. Pain, swelling and stiffness are the primary symptoms of arthritis. Any joint in the body may be affected by the disease, but it is particularly common in the knee.