Welcome to HCM.
First of all the extent of nasal bone
dipping into the nasal cavity
will have to be evaluated. Other considerations are does it cause deformity
of the nose, disfiguring the face, does it cause obstruction to nasal breathing
. After proper evaluation, the apt line of management has to be adopted.
All this can be done by an ENT surgeon.
Wishing your son all the best.