There is no clear clinical data indicating how long it takes to recover from postoperative muscle atrophy, but it generally takes 1~3 months, depending on the patient’s treatment and the extent of the disease. Usually, if a patient has muscle atrophy after surgery, it can be recovered in about 1 month after rehabilitation training under the guidance of the doctor if the condition is mild. If the patient’s condition is more serious or the treatment is not taken in time, the recovery time is relatively longer, it may take 2~3 months, and some patients may need longer time, there are some individual differences. Patients need to pay more attention to their own care after the operation, avoid prolonged bed rest, and get out of bed appropriately. If muscle atrophy occurs, the patient should cooperate with the doctor to carry out rehabilitation training in time to promote recovery. At the same time, patients also need to actively regulate their diet after surgery to ensure balanced nutritional intake, which is also helpful for the recovery of the disease. It is recommended that patients do a good job of caring for themselves according to their own situation after surgery, and if muscle atrophy occurs, they also need to be actively treated.