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Q. I am 18 years old. Is my testosterone level normal?

Answered by
Dr. Shahil Khant
and medically reviewed by iCliniq medical review team.
This is a premium question & answer published on Nov 10, 2016 and last reviewed on: Oct 29, 2020

Hi doctor,

I have not grown to the expected height. I am 173 cm. My mother is 173 cm and father is 189 cm. I had a blood test to determine my HGH levels. The doctor asked me for a testosterone and GH test. The result came back a week later and it said that I had a low HGH level and a 21/42 level testosterone. Is this normal for an 18 year old male? I was devastated that my growth plates were closed, because I also had an x-ray of left hand. My doctor asked me whether I am sexually active. I answered him no. But, I got a doubt regarding erectile dysfunction. Am I suffering from erectile dysfunction? Should I be worried? Is my testosterone too low? How can I increase testosterone? I had torsion three years back and nothing back happened. But, this could be a factor. Another factor may be that I used to hold my mobile phone in my pocket all the time.

I am a sprint athlete and have defined leg muscles, but this could be due to my short stature. I have gone for another blood test for GH, just as a follow up and that time I was advised to fast for 14 hours. But, I did not fast during my first blood test. Please help me.

Dr. Shahil Khant

Andrology General Surgery Urology


Welcome to

Please relax and do not worry.

  • You have not mentioned the exact HGH level values (human growth hormone) and testosterone values with units. I suggest you upload your reports.
  • As you said, definitely you have low testosterone levels. But, do not worry. It is definitely not related to your cell phone position or your torsion history.
  • As you also have low HGH levels, I think your pituitary is producing less LH hormone (luteinizing hormone), which in turn stimulates testosterone secretion from your testes.
  • If you are physically well built and muscular, then that does not mean you should have normal testosterone.
  • I suggest you get the following tests done. Free and total testosterone and serum FSH (follicle stimulating hormone) and LH levels. Get both the tests at morning 8 AM.
  • You should also get an ultrasound examination of your scrotum to look for the status of your testes.
  • If your testosterone levels are really low, then you need to take just testosterone injection once in a month for three months.

Investigations to be done:

1. Free and total testosterone.
2. Serum FSH and LH levels.
3. Ultrasound examination of your scrotum to look for the status of your testes.

Regarding follow up:

Revert back with the reports to an andrologist online.--->

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