How Old Do You Have to Be Before Dorsal Hump Can Be Removed?

The issue here is that current dogma (not supported by good studies) is that surgery on the nose (especially the septum) can affect growth centers of the midface area. So, for an elective procedure, we'd rather wait until growth is complete rather than take that risk. While maturation will vary for each individual, for young women most facial growth is probably complete by 14-16, and for young men 16-18. Again, each individual should be evaluated separately and some doctors may be more conservative than others.

Hope this helps.

The age where it is safe to do rhinoplasty varies per individual as some boys and girls go through puberty and their growth spurt earlier and later than others. Operating before the growth spurt can allow the nose to grow after surgery requiring a revision rhinoplasty to maintain results. The age range I think is safe for girls is 15 to 17 and boys 16 to 18.
There are extreme cases where we will do surgery earlier when a child's self-esteem is so damaged by their appearance that it impedes their social development and affects their mental health.