Patients usually have the above-mentioned typical medical history, and they go to see a doctor because of the pain on the ulnar side of the wrist and the click of the wrist when rotating. The symptoms of TFCC injury usually include diffuse deep pain or soreness and discomfort on the ulnar side of the wrist, and sometimes there is a burning sensation, which usually radiates to the dorsal side and rarely to the palmar side. Grasping objects hard can also induce pain, leading to a weakening of grip strength. These symptoms will be aggravated when the wrist is deviated, the wrist is overstretched, and the forearm is rotated hard. Patients often complain about the pain on the ulnar side of the wrist when rotating the wrist, which makes it difficult to twist the towel, drive and use the spoon. Many patients will have ulnar and wrist pain when propping up a bed or chair armrest, but this symptom is not a specific diagnostic index.