Gout may cause knee pain. Gout manifests itself in hyperuricemia, acute arthritis, gout stones and chronic arthritis. 1. Hyperuricemia: at this time, there are often no symptoms, just abnormal blood tests. 2. Acute gouty arthritis: at this time, the joints are in severe pain, redness, swelling and localized fever. If the lesion site is in the knee joint, then it will cause knee pain. 3. Gouty stone: irregular yellowish-white reddish color in the site of disease such as interphalangeal, metacarpophalangeal, elbow, metatarsophalangeal, Achilles tendon, patellar bursa, etc., which is not healed for a long time, and it can also cause knee pain. 4. Chronic arthritis: common in unregulated treatment, is due to gout stone around the joints caused by chronic inflammatory lesions. It manifests as pain, irregular swelling, recurrent attacks, and even causes extensive destruction of joints. If the lesion site is in the knee joint, it will also cause repeated knee pain. It is recommended that gout patients consult the rheumatology and immunology department in a timely manner, and standardize the treatment under the guidance of the doctor, so as not to miss the condition.