You did the sensible thing and got bloods done mid-cycle. Now you're staring at a results PDF with a column of flagged values and no interpretation — and the reference ranges were written for the general population, not for a man running exogenous androgens.
This article goes marker by marker: what predictably moves under androgen exposure, what's artefact, what's expected pharmacology, and what's a genuine stop signal. It pairs with bodybuilding bloods: what to test and when, which covers the panel itself and how to get it done in NZ.
What this isn't: a guide to running a "cleaner" cycle. Enhanced Men doesn't prescribe, supply or condone performance compounds, and we won't tune anyone's protocol. This is interpretation, risk-honesty and off-ramps — the part the forums skip.
Haematocrit and haemoglobin: the thickening problem
The most predictable change of all. Androgens tell bone marrow to make more red cells, so haematocrit — the fraction of your blood that is red cells — climbs. Thicker blood means harder pumping and higher clot risk; Healthify's plain-language testosterone information flags high red-cell counts as a cause of heart problems and blood clots, and that's at prescribed doses.
The threshold logic used in NZ practice:
- Under 0.50 — normal territory.
- 0.50–0.54 — watch closely. Recheck properly hydrated, because dehydration on the day fakes a high reading.
- Above 0.54 (54%) — action. BPAC's guidance tells prescribers to stop testosterone in men with cardiovascular risk factors whose haematocrit passes this level. That's the rule for supervised, physiological dosing — on unsupervised doses the same number tends to arrive sooner and carries more behind it.
If you see it: a confirmed value above 0.54 is a stop-and-see-a-doctor result. Headaches with visual changes, chest pain, one-sided calf swelling or sudden breathlessness on top of a high haematocrit is same-day urgent care. The full picture — mechanism, venesection pathways, monitoring rhythm — is in our polycythaemia guide.
HDL: the one that costs you years, quietly
HDL falls under androgen exposure, and oral agents push it down hardest. It's the most consistent lipid change on cycle bloods — and the easiest to shrug off, because nothing hurts.
What it means: low HDL isn't an event tomorrow; it's compounding cardiovascular load. Arteries age on the years spent with lipids suppressed, not on any single reading. A man who gets bloods every cycle but ignores a floored HDL each time is monitoring, not acting.
If you see it: HDL below the male reference range that stays there across two tests means the current compound is the driver. There's no clever workaround to interpret your way past — the honest options are stopping the driver and rechecking in eight to twelve weeks, or consciously accepting a long-term cardiovascular cost. Make that decision with a doctor, not by not looking.
Liver enzymes: strain versus training artefact
ALT and AST rise with liver strain — and with hard training, because both enzymes live in muscle too. A heavy week can lift them with a settled liver, which is how lifters end up with false liver scares, and how real ones get waved away.
The pattern separates them:
- ALT and AST modestly up, GGT and bilirubin normal, trained recently — likely muscle. Repeat after 48–72 hours without hard training.
- GGT climbing, bilirubin rising, enzymes several times the upper limit, or symptoms — dark urine, itch, yellowing eyes — that's liver. Stop the compound and see a doctor now, not after the cycle finishes.
Oral agents are the usual culprits; The Level's information is blunt that orals are hard on the liver and can, over time, contribute to liver damage or failure. If you're running one, LFTs aren't optional extras — they're the meter on the thing most likely to break.
LH and FSH: what "shut down" actually is
On cycle, LH and FSH near zero isn't a malfunction — it's the mechanism. The brain senses abundant androgens and stops signalling: LH (the make-testosterone signal) and FSH (the make-sperm signal) drop to near-undetectable, and testicular volume and sperm production fall with them.
So the on-cycle value isn't news; it confirms what the pharmacology predicts. The number that matters is the one after stopping. BPAC's guidance is clear that the axis can't be reliably assessed during or soon after use of anabolic steroids or SARMs, because suppression persists weeks to months. If LH and FSH are still near zero with low testosterone months after stopping, that's a functional-hypogonadism conversation — a medical workup, not another forum protocol. The coming off cycle guide covers the sequencing.
Oestradiol: the number men chase, and shouldn't
Testosterone aromatises to oestradiol, so oestradiol rises on aromatisable compounds. Some rise is expected — and oestradiol in men is not the enemy. You need it for bone, joints, lipids, mood and libido.
Here's where it backfires: treating the lab number with self-sourced aromatase inhibitors. Overshoot is easy, and the crashed-oestradiol state is worse than the high one — aching joints, libido gone, mood flat, lipids worse, and bone density paying the long-term bill. You're then running a second unregulated drug to manage the first, dosed by folklore against a single lab value.
The harm-reduction read: symptoms outrank numbers. A mildly high oestradiol with no symptoms is a note, not a to-do. New breast tissue, a lump or nipple pain is a see-a-doctor-promptly finding — early review matters — and "take more of something" is never the right response to a lab value on its own.
Prolactin: occasionally meaningful, mostly noise
Men test prolactin because of the lore around nandrolone and trenbolone. Worth knowing before you panic: mild prolactin elevations are common and usually boring — stress, poor sleep, a recent training session and several common medications all raise it.
If you see it: a mildly raised prolactin deserves a rested, relaxed repeat before it deserves a theory. A persistently or substantially raised prolactin — especially with nipple discharge, new headaches or visual field changes — needs medical review to exclude pituitary causes. That's true regardless of what you're taking; don't let a compound explanation delay a real diagnosis.
Blood pressure: the marker everyone skips
Not a blood test — and it carries more risk signal than most of the panel. The Level's monitoring list for steroid users includes it alongside the bloods for a reason: water retention, rising haematocrit and rapid weight gain all push blood pressure up on cycle, and sustained hypertension multiplies every other risk on this page — clots, heart, kidneys.
Do it properly: validated cuff, seated and rested, same time each day, a week of readings rather than one. If you see it: consistently above 135/85 on a week of home readings is a medical conversation (the out-of-clinic equivalent of a 140/90 clinic reading). Very high readings with headache, chest pain or breathlessness are urgent care.
The stop signals on one page
| If you see | It usually means | Do this |
|---|---|---|
| Haematocrit above 0.54, confirmed hydrated | Blood thick enough to clot | Stop; see a doctor; urgent care if symptomatic |
| HDL floored across two tests | Compounding cardiovascular cost | Stop and review with a doctor; recheck in 8–12 weeks |
| Enzymes several times upper limit, GGT and bilirubin rising, or jaundice | Liver injury pattern | Stop; doctor now |
| LH/FSH near zero plus low testosterone, months after stopping | Axis not recovering | Medical workup — treatable, not shameful |
| Blood pressure sustained above 135/85 at home | The multiplier risk | Doctor; keep home-monitoring |
| Chest pain, one-sided calf swelling, sudden breathlessness, vision loss | Possible clot | 111 or urgent care today |
What we do at Enhanced Men
Interpretation is most of the service. Men bring existing results to an Enhanced Athlete consult — bodybuilding bloods NZ and we go through them in context — training, compounds, timing of the draw — then arrange the repeats and referrals that actually follow from them. We don't prescribe or supply performance compounds and we won't optimise a cycle. What we will do is tell you plainly which results are artefact, which are expected pharmacology, and which are your body telling you to stop — and if recovery fails after you do, the workup and, where genuine hypogonadism is confirmed, a documented TRT pathway are the same as for any other patient.
FAQ
Is it normal for LH and FSH to be near zero on cycle? It's expected — exogenous androgens switch off the brain's signal to the testes, so near-undetectable LH and FSH confirm suppression rather than reveal a problem. The result that matters is whether they recover in the months after stopping.
My ALT is high but I train hard — liver or muscle? Look at the company it keeps. ALT and AST up with normal GGT and bilirubin after a heavy week is usually muscle; retest after 48–72 hours without training. A rising GGT, raised bilirubin or any jaundice symptoms points at liver — stop and see a doctor.
What haematocrit level is dangerous? NZ prescribing guidance treats above 0.54 (54%) as the action level on prescribed testosterone in men with cardiovascular risk factors. Confirmed above that on cycle is a stop signal, and any clot-type symptom alongside it is urgent care the same day.
My oestradiol came back high — should I take something to lower it? Not off your own bat. Self-dosed aromatase inhibitors overshoot easily, and crashed oestradiol wrecks joints, mood, libido, lipids and long-term bone health. Judge symptoms with a doctor rather than chasing a number — and get any breast lump or nipple change reviewed promptly.
If everything's in range, does that mean the cycle isn't harming me? No. A single normal panel doesn't capture blood pressure trends, fertility, mental health, or the cumulative cardiovascular cost of years with suppressed HDL — and it says nothing about what's actually in an unregulated product. Normal bloods mean keep monitoring, not proven harmless.
How often should I retest while on? The Level suggests a baseline before starting, roughly three-monthly testing during use, and continued checks for a while after stopping. If something is trending — haematocrit, liver enzymes, blood pressure — recheck sooner, typically at six to eight weeks.
References (NZ-specific)
- BPAC NZ — Prescribing testosterone in ageing males (2024): https://bpac.org.nz/2024/testosterone.aspx
- The Level (NZ Drug Foundation) — Steroids: https://thelevel.org.nz/drug-information/anabolic-steroids
- The Level — Staying safer if you're using steroids: https://thelevel.org.nz/news-and-stories/how-to-look-after-your-health-when-using-steroids
- Healthify NZ — Testosterone replacement therapy: https://healthify.nz/medicines-a-z/t/testosterone-replacement-therapy
This article is general health information, not personal medical advice. Blood results need interpreting against your history, your compounds and your timing — get that from a registered health professional, not a reference range alone.