Thyroid cancer patients can have eyeliner if they are in good health. Thyroid cancer is a kind of tumor disease, generally do pupil line will not lead to the spread of cancer cells, and seldom cause infection, so if the patient’s health condition is good, can do pupil line. Therefore, if the patient is in good health condition, he/she can do it. If the patient is in the treatment period, he/she should avoid doing it, because the resistance of the patient’s body is lower in such period, and it is easy to be infected when he/she does it. After checking and discovering thyroid cancer, patients should actively cooperate with doctors for early diagnosis and early treatment, which usually requires surgical resection. Surgical resection is usually required. After resection, combined radiotherapy and chemotherapy are required. During the treatment period, patients may have lower body resistance due to the treatment, and they should avoid doing other invasive operations during this period. Thyroid cancer patients should choose regular hospitals to do pupillary lines, which can effectively avoid infection in the later stage.