After gout, the knee joint can not be straightened, patients can be treated by medication, surgery, general measures and other ways of treatment. 1. Medication: Gout patients can take oral uric acid-lowering drugs, such as febuxostat, allopurinol and so on, as prescribed by doctors. If the pain of knee joint is serious, you can take ibuprofen, aspirin and other non-steroidal anti-inflammatory drugs to relieve the pain. 2. Surgery: If gout stones have been formed in the affected area, resulting in deformity and inability to straighten the knee joint, causing dysfunction, then surgical treatment, such as arthroplasty, can be performed. 3. General measures: It is recommended that patients keep the habit of avoiding high-purine diet, do not eat goose liver, pig liver, duck blood and other animal liver foods, and avoid drinking alcohol to prevent gout from worsening. Usually should also do a good job of knee warmth, avoid strenuous exercise, to prevent the degree of knee joint damage aggravated. If the knee joint cannot be straightened after gout, it is recommended that the patient should go to the hospital in time and follow the doctor’s instructions to adopt appropriate treatment.