Osteoarthritis (OA) is a chronic, degenerative joint disease that affects the cartilage of the joints. It is a common form of arthritis, especially in older adults. Symptoms of Osteoarthritis can include joint pain, stiffness, swelling, and decreased range of motion. Diagnosis is typically made through a physical examination and imaging tests such as X-rays and MRI scans. Treatment options may include medications to reduce inflammation and pain, physical therapy to strengthen the joint, and lifestyle changes such as weight loss and exercise to reduce stress on the joint. Surgery may be necessary in more severe cases.