People with short stature do not usually have intellectual problems. Most children with short stature are due to chronic diseases such as liver disease, kidney disease, vitamin D deficiency or poor gastrointestinal absorption, and partly due to growth hormone deficiency. In chronic diseases, such as poor nutrition, anemia, and hypoproteinemia, the IQ of a child with short stature is only slightly lower than that of a normal child of the same age, but he or she is not stupid, nor is he or she mentally challenged. Because the IQ of human is in a very wide range of 80-120, children with an IQ of 90 are considered normal. The IQ of children with short stature caused by this chronic disease is within the normal range, and growth hormone does not have any effect on the development of intelligence. As long as the child is willing to learn and overcome the psychological barriers, his academic performance will be normal and his intelligence will be normal; there is only one kind of short stature, which is stupid and short, that is, short stature caused by thyroid hormone deficiency, i.e. hypothyroidism, which is called congenital hypothyroidism and directly affects the child’s brain development. In view of such a problem, the state has taken a test for congenital thyroid hormone deficiency in newborns. After 72 hours of birth, hospitals routinely take heel blood and check thyroid hormones to determine if a child is hypothyroid. If the child is hypothyroid, he or she will not only be short, but more importantly, stupid, and miss the most important time for treatment. Parents are advised to be guided and advised by the hospital doctor for examination and treatment to avoid such situations.