Usually, X-ray and ultrasonic examination can be used to determine whether there is gout stone in finger joints. 1. X-ray examination: the examination can see that the deposition of monosodium urate crystals causes destruction of the articular subchondral bone, with eccentric round or ovoid cystic changes, or even worm-eaten or puncture-like defects, with clear boundaries, and the adjacent bone cortex can be puffed up or cocked up like bone spurs. 2. Ultrasonography: Ultrasonography of finger joints can find joint effusion, synovial membrane hyperplasia, articular cartilage and bone destruction, gout stone and calcium deposition in the joints or surrounding soft tissues. In addition, it is recommended that patients go to regular hospitals for examination to clarify the cause of the disease, and then follow the doctor’s instructions for treatment to avoid delaying the condition.