The growth spurt in girls typically starts between ages 9 and 11 and reaches it peaks around ages 11 to 13. Most girls complete their growth by age 15-16.

While in boys, their growth spurt starts later than that of the girl child. It's usually between ages 11 and 13, peaking around ages 13 to 15. Boys.

The growth spurt in boys and girls varies due to their hormones as girls tend to reach puberty earlier than boy child

Both girls and boys are reaching their peak growth spurt about a year younger than previously reported, at around 10. 5 years old for girls and 12. 8 years old for boys compared to previously reported peaks at 11.5 and 13.5 years old, respectively.

The growth of boys as much as girls varies depending on factors such as genetics or nutrition among others.

Girls usually develop earlier than boys, so it is between 10-12 years old, however they tend to develop faster with the onset of menstruation.

In children, it usually occurs between the ages of 12-14, and is associated with increased muscle mass and bone growth.