Which of the following is the most common type of arthritis?

Osteoarthritis is recognized as the most common type of arthritis, affecting millions of people worldwide. This degenerative joint disease occurs when the cartilage that cushions the ends of bones gradually wears down, leading to pain, stiffness, and decreased mobility. It most commonly affects weight-bearing joints such as the knees, hips, and spine, but can occur in any joint.

The prevalence of osteoarthritis can be attributed to various factors, including aging, obesity, genetics, and previous joint injuries. It is often characterized by symptoms that develop slowly over time, making it a widely experienced condition in older adults. In contrast, other types of arthritis, like rheumatoid arthritis and gout, are less common and typically involve more systemic symptoms or inflammatory processes. Fibromyalgia, while often associated with pain, is not classified as arthritis and primarily involves widespread muscular pain and fatigue. This distinction highlights why osteoarthritis stands out as the most common form among the listed options.