Sex Hormones
LH on TRT
What the number means, why it moves on a protocol, and what people usually do about it.
What it is
Luteinizing hormone is the brain telling the testes to make testosterone. On TRT it drops to near zero because the brain sees plenty of androgen and stops asking.
The range
TRT-aware target
Read against the lab range and the trend
How to read the lab range
Lab range roughly 1.7 to 8.6 IU/L. On TRT it reads under 1, which is expected, not a problem. Very high LH with low testosterone means the testes are not answering the signal.
Why it moves on a protocol
- Any exogenous testosterone or anabolic steroid suppresses it within weeks.
- HCG does not raise LH; it stands in for it.
- Recovery after a cycle brings it back over weeks to months.
What people usually do · not a recommendation
- Nothing to fix while on TRT; suppression is how the axis works.
- People who care about fertility or testicle size add HCG at 250 to 500 IU two or three times a week.
- Coming off, a PCT with HCG then clomiphene or tamoxifen is the common route, with a doctor.
How Magno reads it
Import the PDF or a photo of the report and Magno finds LH on it, keeps every test on one line, shows the change since the last one, and reads it against TRT-aware thresholds rather than the lab's generic range. The panel it belongs to, Sex Hormones, gets a written verdict with the probable causes and what people usually do.
Read yours
Drop your lab PDF or a photo and get every marker read like this, in plain words. Free, no account, nothing leaves your browser. Save it in the app to see the change since your last test.
Questions people ask
Is LH near zero on TRT bad?
No. It is expected and reverses when testosterone stops, usually. HCG keeps the testes working in the meantime if that matters to you.
Can LH tell if I am recovered after a cycle?
Yes. LH and FSH back in range with a normal testosterone means the axis is running again.
Related markers
Not medical advice
This is how experienced TRT users read the number and what they usually do about it. Every decision about your protocol belongs to you and a clinician who knows you.