The possibility of gout should be considered in the following cases, and blood uric acid tests and other related tests should be performed promptly. (1) Episodes of joint swelling and pain, especially in the toe joints and finger joints (the toe joints are the most specific). The pain can be relieved by itself without treatment, and then recurring and fixed. (2) Men of middle age or older with a high purine diet, obesity and inactivity, and joint pain and discomfort. (3) A clear family history of gout. (4) Urological stones of unknown origin, especially multiple kidney stones or bilateral kidney stones. (5) History of arthritis, with nodules found under the skin around the joints or at the earwalls. (6) Patients with obesity, hypertension, hyperlipidemia, diabetes mellitus, atherosclerosis or coronary artery disease should have their blood uric acid routinely checked to clarify the presence of hyperuricemia. (7) Gouty arthritis should be thought of for acute attacks of arthritis with significant effects of treatment with colchicine, especially for eliminating joint swelling and pain. (8) The extraction of white toothpaste-like contents after puncture of a subcutaneous nodule, or the outflow of a nodule after its own rupture, is highly suggestive of gout.