Arthritis is a term used to describe inflammation of the joints, leading to pain, stiffness, and reduced mobility. It is not a single disease but a group of conditions that affect the joints and surrounding tissues. The two most common types are osteoarthritis and rheumatoid arthritis. Osteoarthritis occurs when the protective cartilage that cushions the ends of bones wears down over time, often due to ageing or repetitive use. Rheumatoid arthritis, on the other hand, is an autoimmune condition in which the immune system mistakenly attacks the lining of the joints, causing chronic inflammation and potential joint deformity if left untreated.
The symptoms of arthritis can vary depending on the type and severity. Common signs include joint pain, swelling, tenderness, stiffness, and a decreased range of motion. These symptoms often worsen with inactivity or after periods of rest, especially in the morning. In severe cases, arthritis can make everyday activities, such as walking, dressing, or gripping objects, challenging. The condition can affect one or multiple joints and may progress gradually or flare up suddenly.
Gout is a specific type of arthritis caused by a buildup of uric acid crystals in the joints. Uric acid forms naturally when the body breaks down substances called purines, which are found in certain foods and drinks. When levels of uric acid become too high, crystals can accumulate in the joints, leading to sudden, intense pain, redness, and swelling. Gout most commonly affects the big toe but can also occur in the ankles, knees, wrists, and fingers. Attacks can appear suddenly, often at night, and may subside within days, though they can recur if uric acid levels remain elevated.
