Many 16-year-olds still have meaningful growth ahead of them, and some are right in the middle of their most rapid growth phase. Whether you personally can expect a growth spurt at 16 depends primarily on your sex, when your puberty started, and how far along your growth plates are in the process of closing. Boys, on average, don’t finish growing until around age 19, and the picture for late bloomers of either sex can stretch even further. The biology here is more individual than most people realize, and the gap between “average” and “you” can be several years wide.
Average Timing of the Pubertal Growth Spurt
The pubertal growth spurt doesn’t happen at the same age for everyone, but population averages give a useful frame. In girls, the spurt typically begins around age 10 and peaks near age 12, winding down by about 14 to 15. In boys, it starts later, around age 12, with peak height velocity near age 14, and growth continuing until roughly age 17 to 19.1PubMed. The timing and duration of adolescent growth These are averages, though, and there’s wide variability within each sex. Some boys hit their peak growth rate at 12, others not until 16. Some girls are still gaining height at 16, even if most of their growth happened earlier.
Researchers have documented substantial variability in the timing of peak height velocity even among teens at the same stage of puberty, which is an important point if you’re comparing yourself to friends or siblings.2PubMed Central. Relationship Between Timing of Peak Height Velocity and Pubertal Staging in Boys and Girls Two boys who both started showing signs of puberty at the same age can still reach their fastest growth a year or more apart. So the answer to “can I still grow at 16?” is almost certainly yes if you’re male and started puberty on time or late. If you’re female, it depends more on how early your puberty began.
What Growth Plates Tell You
Your ability to grow taller ultimately comes down to the cartilage zones at the ends of your long bones, commonly called growth plates. As long as these plates remain open, new bone can form and the bone can lengthen. Once they fuse, height gain from that bone is over. An MRI-based study of growth plate closure found that in girls, at least half had fused growth plates at all measured sites by ages 14 to 17, while 90% were fused by 15 to 18. In boys, half were fused by ages 15 to 18, and 90% by ages 17 to 20. All females aged 19 and older had closed plates at every site, while complete closure in all males occurred by age 21.3PubMed Central. A cross‐sectional magnetic resonance imaging study of factors influencing growth plate closure in adolescents and young adults
That spread matters. A 16-year-old boy could easily have open growth plates in several locations, particularly in the knee and wrist. A 16-year-old girl is more likely to have most plates closed, but a meaningful fraction are still open at that age. Closure also doesn’t happen everywhere at once. The heel tends to fuse first, followed by the ankle and knee, with the wrist among the last to close.3PubMed Central. A cross‐sectional magnetic resonance imaging study of factors influencing growth plate closure in adolescents and young adults
The Role of Estrogen in Shutting Down Growth
It’s common to hear that testosterone drives male growth and estrogen drives female growth, but the signal that actually closes growth plates in both sexes is estrogen. In a study exploring the cellular mechanism, researchers found that estrogen accelerates the natural aging process of growth plate cartilage cells. These cells have a limited number of divisions in them, and estrogen pushes them through those divisions faster, leading to earlier exhaustion and fusion.4PubMed Central. Effects of estrogen on growth plate senescence and epiphyseal fusion Fusion happens when the rate of new cell production in the plate drops to essentially zero.
This is why boys tend to grow for longer than girls. Boys produce much less estrogen during most of puberty, so their growth plates stay active longer. It’s also why children who enter puberty very early tend to end up shorter as adults despite their early height advantage: the estrogen surge that accompanies early puberty shuts down growth plates sooner. And it explains a clinical observation that has been well documented: in rare cases where males are estrogen-deficient or estrogen-resistant, their growth plates can remain open well into their twenties, leading to unusually tall stature. Animal research has confirmed that estrogen receptor activity is required for fusion to occur at all.5PubMed. Estrogen receptor-beta inhibits skeletal growth and has the capacity to mediate growth plate fusion in female mice
Late Bloomers and Constitutional Delay
If you’re 16 and feel like you started puberty later than everyone else, you may have what doctors call constitutional delay of growth and puberty. This is not a disease. It’s a normal variation in the timing of development, involving delayed skeletal maturation, a later and sometimes more drawn-out pubertal growth spurt, and relatively low levels of certain growth-signaling hormones during the delay period.6PubMed Central. An approach to constitutional delay of growth and puberty It tends to run in families. If one of your parents was a late bloomer who kept growing through high school, you’re more likely to follow that pattern.
Teens with constitutional delay are often among the shortest in their class at 14 or 15 but end up reaching a normal adult height because their growth plates stay open longer. Their bones are “younger” than their calendar age, a distinction that shows up clearly on a bone age X-ray. The FDA has even recognized that some children with this pattern, when they also qualify as having idiopathic short stature, may be candidates for growth hormone treatment, though most reach normal height without any intervention.7PubMed Central. Boosting The Late Blooming Male: Use of growth promoting agents in the athlete with constitutional delay of growth and puberty
Recent genetics research has begun to uncover some of the molecular basis for constitutional delay. Variants in a receptor gene called MC3R were found to be about four times more common in patients with this condition than in the general population, though such variants were still infrequent overall.8PubMed Central. Prevalence of Deleterious Variants in MC3R in Patients With Constitutional Delay of Growth and Puberty The science here is still emerging, but it reinforces the idea that the timing of your growth is substantially programmed by your DNA.
How Much of Your Height Is Genetic
Your parents’ heights are the single strongest predictor of your own adult height, though the prediction is far from perfect. In a study assessing mid-parental height as a forecasting tool, parental heights explained about 36% of the variation in children’s heights, with an estimated heritability of roughly 74%.9PubMed Central. Accurate Prediction of Children’s Target Height from Their Mid-Parental Height That leaves a quarter of the variation attributable to nutrition, health, and other environmental factors. Children in that study were, on average, about 2.7 cm taller than the classic formula predicted.
The traditional target height formula, sometimes called Tanner’s formula, has been shown to systematically underestimate final adult height. A large Korean analysis found that 84% of young adults ended up taller than the formula predicted, by an average of nearly 5 cm in both men and women.10PubMed Central. Tanner’s target height formula underestimates final adult height in Korean adolescents and young adults If someone has used that formula to estimate your final height and you’re worried you won’t reach it, the odds are actually in your favor. These formulas were developed decades ago on earlier generations who were, on average, shorter than today’s young adults due to secular trends in nutrition and health.
Nutrition, Sleep, and What You Can Actually Influence
You can’t change your genetics or your pubertal timing, but you can avoid sabotaging the growth you have left. Adequate nutrition is a key factor in allowing normal pubertal growth to proceed on schedule. Severe undernutrition can delay the onset and tempo of puberty, and it can reduce the total height gained during the growth spurt.11PubMed Central. Review Nutritional interventions during adolescence and their possible effects This doesn’t mean stuffing yourself will make you taller than your genetic ceiling, but it does mean that being chronically underfed during adolescence can keep you from reaching it.
Specific micronutrients also matter. Zinc supplementation in male adolescents with short stature increased growth velocity to about 8.3 cm per year compared with 6.2 cm per year in the control group over a 12-month period.12PubMed. Zinc supplementation increases growth velocity of male children and adolescents with short stature That study was in Chilean boys who may have had marginal zinc status, so the result doesn’t necessarily generalize to well-nourished teens in other settings. But it illustrates how a missing nutrient can hold back growth that your body is otherwise ready to deliver.
Sleep is the other major controllable factor. Growth hormone is released in pulses, and a significant surge occurs during the first episode of deep slow-wave sleep, typically shortly after falling asleep.13PubMed Central. Complex relationship between growth hormone and sleep in children: insights, discrepancies, and implications Chronically short or disrupted sleep can suppress this release. For a 16-year-old still growing, consistently getting a full night’s sleep is one of the few practical things that can support growth.
Chronic stress is another factor worth flagging. Sustained high cortisol levels suppress the growth hormone axis and can interfere with thyroid function and pubertal progression.14PubMed. Stress and Growth in Children and Adolescents Extreme emotional stress during childhood and adolescence has been linked to measurably reduced growth, though this applies more to severe, prolonged stress than to normal teenage pressures.
Will Weightlifting Stunt Your Growth
This is one of the most persistent myths in adolescent health, and the evidence is clear: it doesn’t. A review of experimental resistance training programs found no influence on height or weight gain in pre-adolescent and early-adolescent youth.15PubMed. Weight training in youth-growth, maturation, and safety: an evidence-based review The fear originally came from case reports of growth plate fractures in young lifters, but those injuries were primarily linked to misuse of equipment, excessive weight, poor technique, or lack of supervision rather than to strength training itself.16PubMed Central. Strength training in children and adolescents: raising the bar for young athletes?
More recent reviews have been explicit in dispelling this myth, noting that supervised resistance training in young people is both safe and effective for building strength.17Operative Techniques in Sports Medicine. Resistance Training in the Young Athlete If you’re 16 and lifting weights with good form and reasonable loads, you’re not putting your remaining growth at risk.
When a Medical Condition Is the Reason You’re Short
Sometimes the reason a 16-year-old hasn’t grown as expected isn’t just late blooming. Conditions like celiac disease, hypothyroidism, growth hormone deficiency, or chronic kidney disease can suppress growth during childhood and adolescence. When the underlying condition is treated, catch-up growth can occur, sometimes dramatically. In children with celiac disease diagnosed before age 9, switching to a gluten-free diet led to relatively quick catch-up growth in the first year and complete height recovery within two to three years, regardless of how long diagnosis had been delayed.18PubMed. Catch-up growth in 60 children with celiac disease
When diagnosis came later, the picture was less rosy. In children with late-diagnosed celiac disease, treatment with a gluten-free diet led to significant but incomplete catch-up over four years of follow-up, with more than half still showing some degree of stunting after three years.19PubMed. Catch-up growth in children with late-diagnosed coeliac disease The lesson here is timing: the earlier a growth-suppressing condition is identified and treated, the more time the body has to recover while growth plates are still open. At 16, there may still be a window for catch-up, especially in boys, but it’s closing.
How Doctors Assess Remaining Growth Potential
If you’re worried about your height at 16, a doctor can order a bone age X-ray, typically of your left hand and wrist, to see how mature your skeleton is compared to your calendar age.20PubMed Central. Bone age assessment methods: a critical review If your bone age is younger than your chronological age, that’s a strong indicator you have more growing to do. A 16-year-old boy with a bone age of 14, for instance, likely has several years of growth remaining. Automated methods for reading these X-rays are becoming more common, reducing the variation that can occur between different doctors interpreting the same image.
Bone age is particularly useful for teens with constitutional delay, where a gap of one to three years between bone age and chronological age is typical. It’s also the main way doctors differentiate between a late bloomer who will eventually reach a normal height and someone with a more serious growth disorder that may need treatment.
Clinical Options When Growth Is Genuinely Deficient
For teens diagnosed with growth hormone deficiency or idiopathic short stature, medical intervention exists. Growth hormone therapy is the primary option, and in some cases it’s combined with aromatase inhibitors, which slow the conversion of testosterone to estrogen and thereby delay growth plate closure. A Cochrane review found that aromatase inhibitors improved short-term growth outcomes in boys with short stature, but there was no clear evidence they increased final adult height, with only limited data from a single trial reporting final height results.21PubMed Central. Aromatase inhibitors for short stature in male children and adolescents Real-world data from a registry of patients treated with both growth hormone and aromatase inhibitors showed ongoing growth over two years, with bone age advancing more slowly than calendar age, which suggests the combination was buying more time for growth.22PubMed Central. Height outcomes in children with growth hormone deficiency and idiopathic short stature treated concomitantly with growth hormone and aromatase inhibitor therapy
These treatments are prescribed by pediatric endocrinologists for specific medical indications. They are not casual interventions. If you’re 16, otherwise healthy, and simply shorter than you’d like, these therapies wouldn’t typically be recommended, and starting them late leaves less room for them to work.
The Psychology of Wanting to Be Taller
It’s worth acknowledging that the question “can I still grow?” often comes from a place of real distress. Height dissatisfaction in adolescents has been linked to higher levels of loneliness, social anxiety, and lower self-esteem.23PubMed Central. Height dissatisfaction and loneliness among adolescents: the chain mediating role of social anxiety and social support Research on this topic is still developing, but a recent review noted that height is a highly visible trait that influences psychosocial outcomes more than most people appreciate, and that height dissatisfaction remains surprisingly underexplored in body image research.24PLOS Mental Health. Standing tall or falling short: A narrative review of height dissatisfaction and psychological outcomes
If you’re anxious about your height, the biological reassurance is real: at 16, especially as a male, growth is likely not over. But even if you don’t end up as tall as you hoped, the psychological impact of height dissatisfaction is something that can be addressed. Social support appears to buffer the link between height-related anxiety and loneliness, which suggests that how you relate to your body matters as much as the body itself.
Bones That Keep Growing After You Think You’re Done
Even after the long bones in your legs stop lengthening, not every bone in your body is finished. The clavicle, or collarbone, continues to grow well into early adulthood. In males aged 16 to 19, the clavicle grew at about 3.2 mm per year, and even between ages 20 and 25, it was still growing at roughly 1.7 mm per year. In females, clavicular growth was about 2.2 mm per year at ages 16 to 19.25PubMed Central. The Clavicle Continues to Grow During Adolescence and Early Adulthood A separate study found that male clavicle length increased by about 17.5 mm, or roughly 10% of total length, between age 16 and 25.26PubMed. Clavicles continue to grow beyond skeletal maturity: radiographic analysis of clavicle length in adolescents and young adults This won’t make you taller, but it does mean your frame is still filling out and broadening even after your height has plateaued.
Why You Measure Taller in the Morning
If you’ve ever measured yourself at different times of day and gotten different numbers, you weren’t imagining it. Spinal discs compress under gravity throughout the day, and a study tracking circadian variation in stature found that people are about 19 mm (roughly three-quarters of an inch) taller when they first wake up than at the end of the day. More than half of that height loss happens within the first hour of getting out of bed.27PubMed Central. Circadian variation in human stature This isn’t growth, of course, but it’s a common source of confusion for teens who are closely tracking their height. If you want a consistent measurement, check at the same time of day every time.
Secular Trends and Why You’re Likely Taller Than Your Grandparents
Across much of the world, each generation has tended to be taller than the one before, a phenomenon researchers call the secular trend in growth. Since the 19th century, adult height has increased in most European countries at rates of about 10 to 30 mm per decade.28PubMed. Secular trends in growth The secular trend is also associated with a modest shift toward earlier puberty.29PubMed. Secular trends in pubertal development Better nutrition, fewer childhood infections, and improved overall health appear to be the main drivers. In well-nourished, high-income populations, the trend has begun to plateau, suggesting that those populations are approaching their genetic ceiling for height. In populations still experiencing rapid improvements in nutrition and healthcare, the trend continues.
What this means for you at 16 is context-dependent. If your parents grew up in conditions with less food security or more childhood illness than you’ve experienced, you may end up meaningfully taller than either of them, beyond what a simple mid-parental height formula would predict. That 84% figure from the Korean study, where most young adults exceeded their predicted target height, reflects exactly this kind of generational shift.