Early symptoms of pituitary tumor in children mainly include: 1. headache. Headache is mainly caused by the increase of intracranial pressure due to the growth of pituitary tumor or the growth of pituitary tumor, which causes pulling on the surrounding tissues. 2, can be manifested as vision and visual field disorders. The main reason is that the pituitary tumor interferes with the normal blood supply to the optic nerve during the growth process. 3, it can also show symptoms of corresponding endocrine hormone disorders. If the child is suffering from growth hormone adenoma, the patient may show gigantism, whose height is significantly higher than that of children of the same age, and sometimes there are enlargement of hands and feet, rapid increase of shoe number, etc.