Which condition is characterized by joint inflammation and affects areas like the hands and knees?

The condition characterized by joint inflammation and commonly affecting areas such as the hands and knees is rheumatoid arthritis. This autoimmune disorder leads to chronic inflammation in the joints, resulting in pain, swelling, and potential joint damage over time.

Rheumatoid arthritis is distinct from other types of arthritis because it is systemic, often impacting multiple joints symmetrically. This means if one hand is affected, the other is likely to show similar symptoms. The hands and knees are commonly involved due to their typical use in daily activities, which can exacerbate the inflammation.

While osteoarthritis does indeed affect joints, including the hands and knees, it is primarily associated with wear and tear on the joints rather than inflammation caused by an immune response. Psoriatic arthritis is associated with psoriasis and can affect different areas, but it also involves an inflammatory process. Gout, on the other hand, is caused by the accumulation of uric acid crystals in the joints, leading to sudden and severe pain, often starting at the big toe rather than the hands and knees.

Overall, rheumatoid arthritis stands out as the condition specifically marked by joint inflammation and its symmetrical impact on crucial areas like the hands and knees.