Females usually experience their fastest growth spurt around age 11 or 12. After menstruation starts, it is typical to grow another 7 cm (2.75 inches) in height. It is also typical for females to gain weight during puberty. Usually, females reach adult height around age 14 or 15.
The short answer is that, on average, people keep getting taller until puberty stops, around 15 or 16 years old. By the time someone has reached their adult height, the rest of their body will be done maturing too. By age 16, the body will usually have reached its full adult form — height included.
You will also grow in height. This “growth spurt” happens very quickly. On average, girls grow about 3 inches (8 cm) per year during the growth spurt. Girls usually stop growing taller about 2 years after starting their menstrual period.
Kids actually tend to grow a bit faster in the spring than during other times of the year! A major growth spurt happens at the time of puberty, usually between 8 to 13 years of age in girls and 10 to 15 years in boys. Puberty lasts about 2 to 5 years.
After menstruation starts, it is typical to grow another 7 cm (2.75 inches) in height. It is also typical for females to gain weight during puberty. Usually, females reach adult height around age 14 or 15. However, this can vary.
Usually, for the next two years after their first period, many girls will grow one or two inches – but studies have suggested that girls who have their period at around 10 years will grow an average of four more inches before they reach their adult height.
Early Growth Spurts & Precocious Puberty
Generally, growth spurts for girls start about two years earlier than growth spurts for boys. Children with precocious puberty experience early growth spurts because of the abnormally early rise in sex hormone levels in their bodies.
The average age for girls to start puberty is 11, while for boys the average age is 12. But it's perfectly normal for puberty to begin at any point between the ages of 8 and 13 in girls and 9 and 14 in boys.
Changes in your child's height and weight caused by increases in bone, muscle and fat are the most immediate signs that your child is experiencing a growth spurt.
Girls usually begin puberty between the ages of 8 and 13 years old. The earliest sign of puberty in most girls is the development of breast "buds," nickel-sized bumps under the nipple. It is not unusual for breast growth to start on one side before the other.
Addressing Physical and Mental Changes of Early Puberty
Your child may have a noticeable growth spurt because of their early puberty, but one of its complications is an abrupt and early end of that growth, leading to short stature as an adult.
Having a very tall stature at a young age can be caused by early growth spurts or precocious puberty. Precocious puberty means sex hormone levels rise earlier than they should, which basically leads the child to stopping growth at a young age and they often end up being on the shorter side of average as adults.
High protein intake elevates IGF-1 levels and promotes growth, which could accelerate the onset of puberty. Poor diet. Children with lower-nutrient diets tend to enter puberty earlier. A diet rich in processed foods and meats, dairy, and fast food is disruptive to normal physical development.
Myth: menarche means the end of growth is near
Follow-up data from the Fels Longitudinal Study show that girls who start menstruating at age 10 grow, on average, 10 cm (4 inches), while those in whom menarche is delayed until age 15 grow, on average, 5 cm (2 inches).
Most young people will have their first periods when they're between 11 and 14½, but anywhere from 9-16 years is considered normal.
We can only speak to national average heights here in North America, whereby a 12-year-old girl would be between 137 cm to 162 cm tall (4-1/2 to 5-1/3 feet). A 12-year-old boy should be between 137 cm to 160 cm tall (4-1/2 to 5-1/4 feet).
6 Signs Your Kid is Having a Growth Spurt | Abbott Nutrition
And while it's difficult to say just how much your child will grow during this time, you can count on most of it happening, for girls, between 10 and 14 years, and, for boys, between 12 and 16 years.
If it's found that your child is growing or developing too slowly, the doctor may order tests to check for medical conditions such as hypothyroidism, growth hormone deficiency, or other things that can affect growth. If you have any concerns about your child's growth or development, talk with your doctor.