At the age of 16, 181cm, it is still possible to grow taller, which can be determined by X-ray examination of whether the epiphysis is closed or not. Growing taller is a process in which the long bones keep getting longer. The two ends of the long bones have a three-layered structure of diaphysis, epiphyseal cartilage and epiphysis, and under the joint action of growth hormone, protein and calcium, the cells at the epiphyseal cartilage continue to ossify, which increases the length of the long bones and increases the height of the body. Height growth occurs during three periods of time: infancy, childhood, and puberty. Infancy (up to one year of age) is about 25 centimeters per year, childhood is 5-7 centimeters per year, and puberty is over 6 centimeters per year. By adulthood, the epiphyseal cartilage is fully ossified and closed, and there is no more growth. Boys’ puberty is from 12 to 20 years old, 16 years old is still in puberty, is still in one of the time period of growing taller, so it is still possible to grow taller. If you want to know whether you can still grow taller, you need to take an X-ray to see whether the epiphysis is closed or not, if the epiphysis is closed, you will not grow taller, but if it is not closed, you will still grow taller.