A swollen joint is a condition in which a joint becomes inflamed and enlarged due to an accumulation of fluid. This can cause pain, stiffness, and difficulty moving the joint. Swelling can occur in any joint in the body, but is most common in the knees, ankles, and wrists.

There are many potential causes of swollen joints, including injury, arthritis, gout, and infection. Some autoimmune disorders such as rheumatoid arthritis, lupus, and psoriatic arthritis can also cause swollen joints.

Treatment for swollen joints typically involves reducing inflammation and managing pain. Over-the-counter anti-inflammatory medications such as ibuprofen and naproxen may be helpful. Physical therapy, hot and cold therapy, and rest may also be recommended. In case of underlying condition, treatment will target that specific condition. If the joint is swollen due to an infection, antibiotics may be prescribed.