What condition is characterized by joint pain and inflammation?

Rheumatoid arthritis is a chronic inflammatory disorder that primarily affects joints, leading to pain and inflammation in those areas. The condition involves an immune system attack on the synovial lining of joints, resulting in swelling, stiffness, pain, and eventually joint damage. Patients often experience systemic symptoms such as fatigue and fever as well.

In contrast, muscular dystrophy primarily affects muscle tissue and leads to progressive weakness rather than joint inflammation. Hemophilia is a genetic disorder that impairs the body's ability to control bleeding, leading to joint bleeding and pain but not specifically characterized by inflammation as in rheumatoid arthritis. Cerebral palsy is a neurological disorder that affects movement and muscle tone, not specifically associated with joint inflammation or pain. Thus, the distinct characteristic of joint pain and inflammation clearly identifies rheumatoid arthritis as the correct response.