Thyroid cancer surgery usually takes about three months to recover from, but the ability to swim can only be decided in the context of an individual’s physical condition and recovery. Thyroid cancer surgery usually involves an incision in the front of the neck to remove the diseased thyroid gland, and depending on the results of the examination, a decision will be made on whether to carry out lymphatic drainage and extend the scope of removal. Since the thyroid gland is in the superficial subcutaneous layer, the recovery after surgery is faster, so the incision can usually grow back in about a month. However, since hypothyroidism occurs with the removal of the thyroid gland, it is best to swim after 3 months. However, due to the different physical and nutritional conditions of individuals, the degree of postoperative recovery varies. It is recommended that patients pay attention to rest, strengthen nutrition, and have regular recheckups, and then swim after their condition has completely recovered. After thyroid cancer surgery, patients should go to the hospital for regular checkups and listen to the professional doctor’s advice to decide whether they can swim or not, so as not to be negligent, so as not to affect the post-surgery recovery.