Parents are very concerned about their children’s height, and should pay attention to the fact that their babies are found to be shorter than their peers when they grow to 2-3 years old. According to the height standard of urban children in China, girls below 81.7 cm at 2 years old and below 89.5 cm at 3 years old, boys below 82.7 cm at 2 years old and below 90.0 cm at 3 years old are considered abnormal; or height in the normal range but the growth rate is slowed down and the growth is below 5 cm at 2-3 years old, you should find a doctor to check the cause and take measures. Because children’s height peaks at the age of 0-3 years, if left untreated, it can affect adult height. Common causes of short stature in infants and children: 1. Weighing less than 2.5 kg at birth (full term) or less than 47 cm in height at birth, called small sample children. About 15% of these children will be short in stature in adulthood. 2.Inadequate feeding and nutrition during infancy. 3.Disease such as congenital heart disease, gastrointestinal disease, etc. 4, suffering from endocrine diseases such as hypothyroidism, growth hormone deficiency, etc. 5, suffering from congenital ovarian insufficiency syndrome. At present, in addition to correcting short stature through nutritional supplementation or treatment of systemic diseases, infants and children can also be treated with drugs, such as hypothyroidism treated with thyroxine, and the rest can be treated with growth hormone, and the earlier the treatment, the better the effect. Do not wait for the epiphyseal closure of the waist puberty before treatment, it will not achieve the desired effect.