Surgery is generally best for thyroglossal cysts even when they are asymptomatic. Thyroglossal cysts are caused by the thyroglossal tissue not completely degraded and disappeared during the embryonic development of the fetus, and they are most common in the upper and lower part of the hyoid bone. The cysts are round, soft, slow-growing, with no adhesion to the skin or surrounding tissues, and can move with swallowing and tongue extension. Thyroglossal cysts usually have no conscious symptoms, the cysts can not be self-healing, drug treatment is ineffective, the cysts may gradually increase in size or become infected, the infection can be self-infected, easy to be misdiagnosed as abscess for incision and drainage, resulting in thyroglossal fistula, and will increase the difficulty of surgery. Therefore, once a thyroglossal cyst is diagnosed, surgical removal is recommended.