High pituitary prolactin in 10-year-old children may be caused by physiologic factors, thyroid dysfunction, and pituitary or hypothalamic disease. 1. Physiological factors: If pituitary prolactin is slightly elevated without abnormal symptoms such as headache, vision loss, etc., it may be caused by strenuous activities, painful stimuli, and lack of sleep or medication. 2. Abnormal thyroid function: When hypothyroidism occurs, the thyroid gland secretes less, causing the hypothalamus to secrete more thyrotropin-releasing hormone, which stimulates the pituitary gland to secrete a large amount of prolactin. 3. Pituitary or hypothalamic diseases: such as pituitary prolactinoma, vacuolar pterygoid syndrome, craniopharyngioma, partial infarction of the hypothalamus, etc., can also lead to elevated levels of prolactin. 0-year-old children with high pituitary prolactin may also have other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.