If the child’s height grows slowly, it is usually necessary to consult a doctor to improve laboratory tests, imaging tests, etc. 1. 1. Laboratory examination: if growth hormone deficiency is considered, growth hormone stimulation test is feasible; if hypothyroidism is considered, complete set of thyroid function tests can be improved; if precocious puberty is considered, complete set of hormones and insulin-like growth factor-1 can be further improved. 2. Imaging examination: according to whether the child has other manifestations, such as mental retardation, early appearance of secondary sexual characteristics, etc., further improve the skull MRI, bone age, thyroid ultrasound, genital ultrasound and bone density examination. Children growing slowly is recommended to consult a doctor in time to clarify the cause of the disease, under the guidance of the doctor for treatment.