High thyroid stimulating hormone in a 7-year-old child may be caused by primary hypothyroidism, pituitary tumor and many other reasons, which need to be treated with medication and surgery according to the cause. 1. Primary hypothyroidism: high thyroid stimulating hormone and low thyroid hormone level caused by primary hypothyroidism requires replacement therapy under the guidance of a doctor, such as levothyroxine sodium tablets. 2. Pituitary tumor: If a 7-year-old child suffers from thyroid hormone secreting pituitary tumor, it will lead to high thyroid hormone, at this time, the patient can follow the doctor’s instructions with medication, but also can take the transnasal butterfly microsurgery, frontal craniotomy surgery and other surgical methods of treatment. It is recommended that 7-year-old children with high thyrotropin hormone should consult a doctor in time, and the doctor will choose appropriate measures to treat the cause of the disease.