Inflammation is the body's defense mechanism against foreign substances, and is often caused by arthritis or other inflammatory diseases. The Cleveland Clinic notes that some types of arthritis result from misdirected inflammation. To diagnose an inflammatory disease, a doctor evaluates the patient's symptoms, performs a physical exam and reviews the results of X-rays. Finding the cause of inflammation is necessary in order to implement the right treatment plan.
Rheumatoid Arthritis
Arthritis is inflammation of one or more joints. MayoClinic reports that one of the most common types of arthritis is rheumatoid arthritis. Pain, stiffness and inflammation are symptoms of rheumatoid arthritis, which often begins between the ages of 25 and 55. The condition may be temporary, lasting a short time, sporadic or lasting.
Osteoarthritis
Osteoarthritis often appears with age, and causes inflammation, pain and reduced mobility. Unlike rheumatoid arthritis, however, osteoarthritis is degenerative and causes the cartilage to break down in the joints, which leads to permanent damage.
Gout
Gout is a form of arthritis that occurs when the body produces too much uric acid or is unable to eliminate enough, which causes the acid to build up in the blood. Symptoms include inflamed, red, hot and stiff joints. Heredity, gender and alcohol consumption are risks factors for gout.
Bursitis
Bursitis occurs when bursae--the tiny fluid-filled pads that cushion the bones, tendons and muscles--become inflamed. Bursitis usually occurs in the hips, elbows and shoulders, though it can appear in any joint that performs repetitive movements. Symptoms include pain and inflammation.
Chondromalacia Patella
Overuse and injury cause chondromalacia patella, a condition that leads to damage to the cartilage beneath the kneecap. Resulting pain and inflammation are often eased with rest and ice, though surgery and physical therapy are options for severe damage.


