Dysplasia is largely related to a variety of factors such as abnormal hormone levels, chromosomal abnormalities, and intoxication. For example, in males, if secondary sexual characteristics do not develop during puberty, it may be due to low androgens and in females, low estrogen. It is recommended that the patient should go to the hospital to have a hormone test to see if the hormone is not secreted, which is the cause of dysplasia. If the fetus is stunted, it may be caused by maternal endocrine disorders, uterine abnormalities, reproductive tract infections, or genetic factors. If a child is stunted, it may be caused by poisoning, such as carbon monoxide poisoning or lead poisoning. Chromosomal abnormalities may also cause children to fail to grow and develop normally, and there are also diseases that may cause children to be short and stunted, such as cretinism, growth hormone deficiency, and hypothyroidism can cause.