Enlarged thyroid gland in puberty may not be normal, further examination of thyroid function is recommended. Generally speaking, if the thyroid function is normal and there is no hyperthyroidism or hypothyroidism, the patient can be left untreated for the time being and be reviewed regularly. If the examination reveals abnormalities in the thyroid function, it is recommended to further check the thyroid ultrasound and so on to make a clear diagnosis and target the treatment. The main reason for adolescent goiter is that adolescents are in the period of growth and development, the demand for thyroid hormone is more, the thyroid gland will appear some benign hyperplasia to secrete more thyroxine to meet the body’s needs, which will lead to adolescent goiter, at this time, if the thyroid function is normal, generally do not need to be treated. Some pubertal goiter may also be the result of thyroid-related diseases such as simple goiter, diffuse toxic goiter, etc., in which thyroid function may be abnormal and untreated may lead to serious complications. When a patient develops an enlarged thyroid, it is recommended to go to a regular hospital for examination and cooperate with the doctor’s treatment.