1.The time when the child was found to be short. 2.The child’s gender, age, height and weight. 3.The condition of the mother’s pregnancy. 4.What kind of delivery method was used when the baby was born, whether it was a difficult delivery, asphyxia, height and weight at birth, etc. 5.The rate of height growth per year. 6.Family members’ height and developmental age, whether there is family history of tumor, diabetes, genetic disease, etc. Hu Huayan, Department of Pediatrics, Jiujiang Maternal and Child Health Hospital 7. Current development of sexual characteristics. 8.Intellectual development, the presence of chronic hepatitis, kidney disease and asthma 9.Whether drugs affecting growth and development have been used, such as prednisone (prednisone), dexamethasone and other glucocorticoids, etc. 10.Past medical visits and related test results (bring the child’s past medical records and test results). Note: The height measurement should be done at the same time, in the same place, by the same measuring person and with the same measuring instrument (preferably with a triangular ruler), otherwise there will be errors, and generally there is a difference of 1~2 cm between the child’s height in the morning and evening.