To be precise: it is possible, but everyone's situation is different, maybe we can go up a little; Maybe not for long. If you want to see if it can grow any longer, you need to go to the hospital to take a photo to see if your epiphysis has healed. If there is, it is impossible to grow. The age of epiphysis healing in boys is generally about 2 1-23 years old. Few people grow beyond this age.