Benign thymoma postoperative muscle weakness can be relieved by reasonable diet, rest and medication. 1. Reasonable diet: short-term muscle weakness after thymoma surgery is usually a normal phenomenon, patients are advised to relax their mind and maintain a scientific and reasonable diet, and they are advised to eat more food rich in dietary fiber or food with high protein content, and do not eat spicy, cold and greasy food. 2. Pay attention to rest: patients should pay more attention to rest after the operation, try to rest in bed, reduce activities, and pay attention to warmth after the operation to avoid catching cold. 3. Take medication: If the symptoms are more serious, patients can take anticholinesterase drugs, such as neostigmine, under the guidance of the doctor. 4. Respiratory support: Some severe patients may have respiratory muscle weakness and may need ventilator-assisted treatment, but this is generally rare. It is recommended that patients should closely observe their own recovery, and if there is any discomfort, they should consult a doctor immediately, under the guidance of a physician, to identify the cause of the problem and then give targeted treatment, and should not blindly use their own medication.