Postoperative diet of papillary thyroid cancer should pay attention to mainly fluid food, strengthen nutrition, avoid high iodine food, avoid greasy and stimulating food, etc. 1. Take fluid food as the mainstay: after papillary thyroid cancer surgery, it is better to take fluid food that is easy to digest and absorb, which can help to reduce the burden on stomach and intestines and promote postoperative recovery. 2. Enhance nutrition: after surgery, it is recommended to eat more fruits and vegetables, and protein-rich food such as milk, lean meat, etc., which can replenish the nutrients needed by the body and improve the immunity of the body. 3. Avoid high iodine food: after surgery, try to eat less iodine-containing food such as seaweed, seaweed, iodized salt and so on, to reduce iodine intake, so as not to affect the function of the thyroid gland, which will easily promote the recurrence of thyroid cancer. 4. Avoid eating greasy and stimulating food: do not eat greasy, spicy and stimulating food after surgery, so as not to stimulate the thyroid gland, which will affect the postoperative recovery and lead to poor prognosis. After papillary thyroid cancer surgery, one should strictly follow the doctor’s instruction and pay attention to diet so as to realize better health recovery. In addition, one should take medication scientifically under the guidance of physicians and undergo regular checkups, so as to effectively prevent recurrence and better protect one’s health.