1. Growth hormone must be stored in a refrigerator freezer to avoid contamination. 2.Injected subcutaneously every night before bedtime, do not change the dosage or stop the drug without permission. 3. Follow up regularly to observe the efficacy and side effects: review height, weight and hormone level every 3 months, and bone age once a year. 4. During the treatment period, attention should be paid to: appropriate supplementation of various nutrients and adequate sleep time. Those with excessive appetite should prevent excessive weight gain; avoid prolonged running, jumping and other strenuous exercises, and keep sitting upright; if there is a fever higher than 38℃, the medication can be suspended. 5.The duration of treatment depends on the individual height growth, generally at least 2 years. 6.After stopping the medication, you should still follow up regularly to observe the growth and development.