How to judge dwarfism

Patient's question:

Now every family has a child, so they always compare their own child with the same-aged child of other families. I want to ask the doctor, for a 4-year-old and 3-month-old boy, is a height of 93 cm considered to have dwarfism? What is considered short?

Doctor's answer:

Dwarfism refers to a child whose height is more than two standard deviations below the average height of their same-sex peers. For example, the average height of an 18-year-old boy is 99.9 cm. One standard deviation is 3.9 cm. Therefore, the normal height range is between 92.1 cm and 107.7 cm. If a child has a height that is below average, it is recommended to seek further detailed medical examination at the hospital. Wishing the patient a speedy recovery and good health!

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