There are more than 100 types of arthritis. The most common form of arthritis is osteoarthritis, also known as degenerative joint disease. Also known as "wear and tear" arthritis, osteoarthritis occurs when the cartilage that cushions and protects the ends of your bones gradually wears away. It results from overuse, trauma, or the natural degeneration of cartilage that occurs with aging.
Osteoarthritis is often more painful in joints that bear weight, such as the knee, hip, and spine.
Osteoarthritis is a top cause of disability in older people. The goal of arthritis treatment is to reduce pain and improve function. Although there is no cure for osteoarthritis, there are many treatment options available to help manage pain and keep people staying active.
Osteoarthritis: In-depth information from the American College of Rheumatology
Osteoarthritis Patient Facts: Overview of osteoarthritis from the American College of Rheumatology
Osteoarthritis FAQs: An osteoarthritis Q&A from the Centers for Disease Control and Prevention
Osteoarthritis of the Hip: Information from the American Academy of Orthopaedic Surgeons
MedlinePlus Osteoarthritis: Information from the National Library of Medicine
MedlinePlus Arthritis: Information from the National Library of Medicine
MedlinePlus Cervical Spondylosis: Information from the National Library of Medicine