Muscle atrophy after hand thumb surgery may be caused by wasting atrophy or nerve damage, which can usually be recovered. If the muscle atrophy after thumb surgery is caused by the inability to move the thumb after the fracture, the patient can carry out functional exercises after the fracture has healed, and the symptoms of muscle atrophy can usually be gradually recovered. If the muscle atrophy after thumb surgery is caused by nerve damage during surgery, patients can take vitamin B complex tablets, methylcobalamin and other nutritive nerve drugs, and can also use neuromuscular electrical stimulation therapy to cooperate with the treatment. Wait until the nerve function is restored and then carry out functional limb exercise, the patient’s symptoms of muscle atrophy will generally be gradually recovered. Patients who have muscle atrophy after hand thumb surgery should be examined in time and treated according to the examination results under the guidance of the doctor.