Arthritis is a disease of which part of the body?

Arthritis is a medical condition that primarily affects the joints of the human body. Joints are the points where two bones meet, allowing movement and flexibility. Arthritis is characterized by pain, stiffness, swelling, and reduced mobility in these areas, which can impact daily activities and overall quality of life.

There are many types of arthritis, with osteoarthritis and rheumatoid arthritis being the most common. Osteoarthritis occurs due to the gradual wear and tear of the cartilage, which is the smooth tissue covering the ends of bones in joints. As cartilage wears down, bones may rub against each other, causing pain and inflammation. Rheumatoid arthritis, on the other hand, is an autoimmune disease where the body’s immune system attacks the lining of the joints, leading to swelling, pain, and sometimes joint deformity.

While arthritis can occur in any joint, it is most commonly seen in the knees, hips, fingers, and spine. Risk factors include aging, genetic predisposition, obesity, injury, and autoimmune conditions. Symptoms often develop gradually but can sometimes appear suddenly.

Treatment of arthritis focuses on pain management, improving mobility, and reducing inflammation. This can include medications, physical therapy, lifestyle changes, and in severe cases, surgical procedures such as joint replacement. Early diagnosis and proper care are essential to prevent long-term joint damage.

It is important to note that arthritis does not affect the lungs, blood, or liver, making these options incorrect. Its impact is strictly on the joints, which are the primary site of the disease.

Therefore, the correct answer is Joints (Option C), as arthritis is fundamentally a disease of the joints, affecting their function and overall mobility in the human body.