At what age pubic hair comes or under armchair? I see in my boy who is just 6 year 10 month old Asking a doctor or any pediatrician please

A. Mam but there is no age to wait for girl child these days because of improper diet and all it can start happening from the age of 9 to 10 years I’m for boys usually between the age of 10 to 13 years because puberty age after that but some boys can have it early also depending upon the kind of diet and activities do they have