When Do Females Stop Growing? Timing Information Guide

Girls usually reach their adult height between ages 14 and 16, though the exact timing varies from person to person. The process starts with a growth spurt that typically begins around age 10 or 11, peaks about a year later, and then slows. Most girls stop growing taller within one to two years after their first menstrual period, but some continue gaining a small amount of height for up to two years after that milestone.

When Do Females Stop Growing?

Most girls finish growing taller by around age 14 to 16, though some may continue until 18. The timing depends heavily on when puberty begins, not on a fixed calendar age.

The key event is menarche — a girl’s first menstrual period. Before menarche, growth is relatively rapid. After menarche, growth slows significantly. Research consistently shows that most girls gain only a small amount of additional height after their first period, typically finishing within about two years.

This is why two 13-year-olds can be at very different stages. One may have already stopped growing, while another may still have several inches to gain. Comparing height between peers at this age tells you very little about final adult height.

Some girls continue growing into their late teens, especially if puberty started later than average. Others finish earlier. Both patterns fall within the normal range.

What Causes Growth to Stop?

Growth stops when the growth plates in the long bones close. These are areas of cartilage near the ends of bones where new bone tissue forms during childhood and adolescence.

Estrogen plays a central role in this process. During puberty, estrogen levels rise. This hormone drives the growth spurt — but it also eventually causes the growth plates to fuse. Once the plates fuse, no further lengthening of those bones is possible.

This may seem counterintuitive. Estrogen both fuels growth and ends it. The same hormone that triggers the rapid height gain of puberty also signals the growth plates to close when the time comes.

Growth plate closure is a gradual process. It does not happen overnight. Different bones close at different times, and the sequence follows a predictable pattern. This is why doctors can estimate how much growth remains by looking at a bone age X-ray.

How Does the Growth Spurt Work?

The pubertal growth spurt in girls typically begins between ages 9 and 11. At its peak, a girl may grow around 3 to 3.5 inches in a single year. That peak usually occurs about 6 to 12 months before menarche.

After the peak, growth velocity declines. By the time a girl has her first period, she has usually completed most of her height gain. The average girl grows about 1 to 3 inches after menarche, though this varies.

Here is a general timeline of what happens and when:

• Ages 8 to 10: Breast development begins (thelarche), often the first visible sign of puberty
• Ages 9 to 11: Growth spurt starts
• Ages 10 to 12: Peak growth velocity
• Ages 11 to 14: Menarche typically occurs
• Ages 14 to 16: Growth largely complete for most girls

These ranges are averages. A girl who starts puberty at 8 will likely finish growing earlier than one who starts at 12. The sequence matters more than the specific ages.

Can a Girl Grow Taller After Her First Period?

Yes, but usually only a small amount. Most girls gain between 1 and 3 inches after menarche, and this growth typically finishes within two years.

The exact amount depends on how old she was at menarche and how much growth she had already completed. A girl who starts her period at 10 may have more remaining growth than one who starts at 14.

After the growth plates close, no amount of stretching, supplements, or exercise will increase height. This is a structural limit, not a matter of effort or nutrition at that point.

Some products marketed to increase height in teenagers claim to work after growth plates have closed. No clinical evidence supports these claims. Once the plates fuse, bone lengthening is not possible through any non-surgical means.

What Factors Affect When Growth Stops?

Genetics are the strongest predictor of both final height and the timing of growth cessation. If a mother finished growing early, her daughter likely will too.

Nutrition plays a supporting role. Chronic malnutrition can delay growth and puberty. Adequate calories, protein, calcium, and vitamin D support normal bone development during childhood and adolescence. But beyond meeting basic nutritional needs, extra nutrients do not make a child taller.

Other factors that can influence timing include:

• Overall health: Chronic illness during childhood can delay growth and puberty
• Hormonal conditions: Thyroid disorders or growth hormone deficiencies can affect timing
• Body weight: Both very low and very high body fat can affect when puberty begins
• Physical activity: Intense athletic training in some sports may delay puberty

These factors shift the timing earlier or later. They rarely change the fundamental sequence: growth spurt, menarche, slowing, and then growth plate closure.

When Should Parents Be Concerned?

Most variation in growth timing is normal. But some situations warrant a medical evaluation.

Consider talking to a pediatrician if:

• A girl has not shown any signs of breast development by age 13
• A girl has not started menstruating by age 15
• Growth seems to have stopped before age 14
• A girl is significantly shorter than expected based on family height
• Puberty signs appear before age 8

A doctor can assess bone age with a simple hand X-ray. This shows how much growth potential remains and whether the timing falls outside the normal range.

In some cases, underlying conditions such as thyroid problems, growth hormone deficiency, or other endocrine issues may be involved. These are uncommon but treatable when identified.

For most girls, no intervention is needed. The variation in timing is simply part of normal human development.

Does Bone Age Matter More Than Chronological Age?

Yes, for growth purposes. Bone age is a better predictor of remaining growth than a birthday.

Two girls can both be 13 but have bone ages of 12 and 15. The one with a bone age of 12 likely has more growth remaining. The one with a bone age of 15 is closer to finishing.

Bone age is determined by comparing an X-ray of the hand and wrist to standardized reference images. The growth plates in these bones follow a predictable maturation sequence.

This is why a pediatric endocrinologist may order a bone age X-ray when evaluating growth concerns. It provides information that chronological age alone cannot.

What About Height After Growth Plates Close?

Once growth plates fuse, height is final. No supplement, exercise, or stretching regimen can change it.

The only medical intervention that can increase height after growth plate closure is a surgical procedure called limb lengthening. This involves cutting bones and gradually separating them to allow new bone to form. It is a major surgery with significant risks, including infection, nerve damage, and joint problems. It is typically reserved for specific medical conditions, not cosmetic height increase.

For most people, accepting final height is the realistic path. Focusing on posture, which can affect how tall someone appears, is reasonable. But posture changes do not add actual bone length.