With tendon sheath giant cell tumor well after the early stage is not recommended to do deep squat, after healing can be deep squat exercise. Tendon sheath giant cell tumor is a benign tumor, the current clinical treatment is mainly surgical resection, but the disease has a certain recurrence rate. It is generally not recommended to perform deep squats immediately after surgical treatment, or other exercises that potentially overstretch the ligaments or compress the tendon sheath at the surgical site. Since tenosynovial giant cell tumor can involve the surrounding tissues and even the adjacent bone tissues, it often leads to soft tissue (tendons, ligaments, nerves, etc.) damage or adjacent osteoporosis, which can cause joint dysfunction, weakening of the joint’s weight-bearing capacity, and abnormal movement of the joint. Therefore, for a period of time after the surgery, you should avoid doing strenuous exercises such as squatting to avoid aggravating the existing damage. After the disease is cured, the surrounding soft tissue and bone lesions are completely recovered, and the joints return to normal movement, you can withstand deep squatting exercise. When performing rehabilitation exercises, you should consult a professional rehabilitation physician’s advice, and reasonably arrange the exercise program according to your condition.