This document outlines the symptoms, causes, risk factors, diagnosis, and treatment of osteoarthritis. The symptoms include pain, stiffness, tenderness, loss of flexibility, grating sensation, bone spurs, and swelling. Causes can be joint trauma, prior inflammatory arthritis, metabolic disorders, endocrinal disorders like diabetes, collagen defects, and others like osteoporosis. Risk factors consist of older age, sex, obesity, joint injuries, genetics, bone deformities, and certain metabolic diseases. Diagnosis involves x-rays, MRI, blood tests, and joint fluid analysis. Treatment includes physical and occupational therapy, lifestyle changes, and medications.