Final answer:
Osteoarthritis is a joint disease that results from the breakdown of joint cartilage and bone. Risk factors include injury, physical labor jobs, sports, and being overweight. Treatments include lifestyle changes and medication.
Step-by-step explanation:
Osteoarthritis (OA) is a joint disease that results from the breakdown of joint cartilage and bone. The most common symptoms are joint pain and stiffness. Osteoarthritis is associated with aging and "wear and tear" of the articular cartilage. Risk factors that may lead to osteoarthritis later in life include injury to a joint, physical labor jobs, sports with running or twisting actions, and being overweight. Treatments for osteoarthritis include lifestyle changes, such as weight loss and low-impact exercise, and over-the-counter or prescription medications. For severe cases, joint replacement surgery may be required.