How long it takes to have a normal diet after thyroid cancer surgery is related to whether the patient’s swallowing function has recovered or not, and cannot be generalized. Generally speaking, one to two days after thyroid cancer surgery can slowly transition from liquid diet to normal diet. Thyroid cancer is a kind of malignant tumor, the cause of which is still unclear. It can present with symptoms such as neck lump, neck pain, difficulty in breathing and hoarseness. The main treatments for thyroid cancer include surgery, and the return to normal diet after surgery needs to be gradual. Generally speaking, after one to two days after the operation and after the swallowing function is restored, you can gradually transition from consuming liquid food to consuming normal food. It should be reminded that you can consult your doctor on how long it will take to resume a normal diet. In addition, the postoperative diet should be light and avoid spicy and stimulating foods. You should also pay attention to the cleanliness of the surgical site to prevent infection.