A 170cm boy is generally not considered short. There may be differences between different countries, regions and races. According to the 2020 Report on Nutrition and Chronic Disease Status of Chinese Residents, the average height of Chinese men and women aged 18-44 is 169.7cm and 158cm, respectively.A male height of 170cm reaches the average height of Chinese adult males, which is not considered short. Height is determined by both genetic and environmental factors. Boys in puberty, to eat more food containing high quality protein such as eggs, beef, fish, shrimp, etc., to ensure adequate sleep, and participate in outdoor sports such as basketball, swimming, rope skipping, skipping and so on, can help promote bone growth. It is recommended that patients can go to a regular hospital, under the guidance of the doctor’s scientific exercise.