Whether medullary thyroid cancer surgery affects life expectancy is mainly related to the stage of this cancer, if it belongs to the early stage, the prognosis of medullary thyroid cancer surgery usually does not have much impact on the life expectancy of patients, if it is in the advanced stage, the quality of survival of patients will be greatly reduced. Surgery is an effective means to treat medullary thyroid cancer. If the surgery is performed at the early stage of the detection of medullary thyroid cancer, and the surgical patient recovers well, the surgery will generally have little effect on the life expectancy. If the patient is in the advanced stage of medullary thyroid cancer, then the cancer cells have spread more widely and after surgery, it may affect the patient’s life expectancy. Patients are advised to keep a good mindset in daily life, actively cooperate with the treatment, take medication according to doctor’s prescription, try to correct bad habits, eat and drink in a scientific and reasonable way, have regular work and rest, and keep a good mood. Regular review, so that doctors can understand the effect of treatment and adjust the treatment program in time.