Last updated on November 3, 2025
Question:
I am 18 years old (and 169.5 cm tall), but my puberty started quite late. When I was 15, I visited an endocrinologist who examined me and noted that puberty had “just begun.” I didn’t notice any significant physical changes until I was around 16, when my voice started to deepen, I developed acne, and I began to grow taller, etc.
My body also doesn’t produce enough—or possibly any—growth hormone, which is why I have been prescribed growth hormone therapy. It has helped me significantly; I’ve grown at least 15 cm because of it. A few days ago, I had a follow-up appointment with my endocrinologist, and my current growth rate is 6 cm per year (previously 8 cm per year). I asked my doctor how many more centimeters I’m likely to grow, but she couldn’t give a precise answer, as she didn’t want to promise any specific number. However, she did say that I will grow taller than my father, meaning at least 171 cm. How much more am I likely to grow?
Thank you!
Answer:
I’m at a severe disadvantage. I am not able to see you, so I don’t know what stage of development you are currently at. I would estimate, based on your growth numbers, that you are likely near the beginning of stage 4, but I can’t say this with certainty. Your doctor, however, does know your current stage of development. The development of acne and a deepening voice indicate that you are in early stage 4.
The average teenage male grows 3 to 8 cm during stage 4. I would assume you will find something similar in your growth. However, once again, your doctor has more knowledge and experience in this area than I do.
Response:
Thanks for the quick response! I forgot to mention that, according to the Tanner test, I’m at level 4.2.