Overview
Arthritis is inflammation of one or more joints. A joint is the area where two bones meet. There are over 100 different types of arthritis. Arthritis involves the breakdown of cartilage. Cartilage normally protects a joint, allowing it to move smoothly. Cartilage also absorbs shock when pressure is placed on the joint, such as when you walk. Without the normal amount of cartilage, the bones rub together, causing pain, swelling (inflammation), and stiffness.
Causes
Autoimmune disease
Broken bone
General “wear and tear”
Infection
Symptoms
Joint pain
Joint swelling
Reduced ability to move the joint
Redness of the skin around a joint
Stiffness, especially in the morning
Warmth around a joint
Diagnosis
Physical examination and medical history consultation
X-rays
Lab tests
Treatment
Lifestyle changes
Physical therapy
OTC medications
Corticosteroids
Disease-modifying anti-rheumatic drugs
Biologic medications
Surgery
Source: https://www.ncbi.nlm.nih.gov/