After papillary thyroid cancer surgery, most patients need to take medicine, which is divided into the following categories: 1. thyroid preparations: including thyroid tablets and levothyroxine sodium. On the one hand, they replenish the thyroid hormone in the body, on the other hand, they can inhibit the secretion of thyroid stimulating hormone, which can reduce the risk of recurrence after surgery, called long-term TSH suppression therapy, which is the long-term treatment after surgery; 2. Calcium agents: a few patients may have low calcium convulsions, which may require calcium supplementation and taking calcium agents. In addition, some people may supplement with oral medications that promote calcium absorption in order to improve the absorption of calcium. 3. Other: If thyroid cancer needs further treatment after surgery, some people may need to do nuclear therapy, iodine 131 therapy, which is also a kind of medication. Some patients with advanced thyroid cancer may need to take other drugs, such as targeted drug therapy, in addition to nuclear therapy. So after thyroid cancer surgery, most patients need to take one drug, namely levothyroxine sodium, which is probably a drug that most patients take for life.