TRT restores testosterone to the normal range in men with diagnosed hypogonadism: two low morning readings plus symptoms. It improves energy, mood, libido, bone density and body composition modestly. It is lifelong, suppresses fertility, and needs blood monitoring. A cycle uses the same hormone at several times the level for a defined period. The difference is the numbers, not the molecule.
- Diagnosis requires symptoms plus low testosterone on at least two separate morning samples, per the 2018 Endocrine Society guideline.
- Monitoring: testosterone, hematocrit and PSA at 3–6 months after starting, then yearly; hematocrit above 54% means stop until it falls.
- TRT suppresses LH, FSH and sperm production; men who want children need to discuss alternatives first.
- Benefits are real but modest: body composition, bone density, mood, libido, energy. It does not turn a normal man into a strong one.
- Former steroid users with persistent hypogonadism are one recognised group for whom TRT is a treatment.
What it is
Prescribed testosterone that brings a deficient level back into the normal range. Not above it. The goal is to make a hypogonadal man normal, with monitoring, for as long as he needs it.
Who qualifies
The 2018 Endocrine Society guideline: symptoms consistent with deficiency, plus low total testosterone on two separate morning samples, with free testosterone and SHBG when the total is borderline. Then a search for the cause: pituitary, testicular, medication, obesity, sleep apnoea, or prior androgen use. Reversible causes get treated first.
One low reading after a bad night, a hard training block or an illness is not a diagnosis.
What it does
| Improves | Size of effect |
|---|---|
| Libido, erectile function | Clear |
| Energy, mood | Modest, real |
| Lean mass, fat mass | Modest: a few kilos over a year |
| Bone density | Clear over years |
| Anaemia | Clear |
What it does not do: build the physique of someone running several times the dose. Normal testosterone produces a normal response to training.
What it costs
- Fertility. LH and FSH suppressed, sperm production down. Discuss before starting if children are a possibility.
- Your own production. Suppressed while on it; stopping means a recovery period.
- Monitoring for life. Hematocrit, PSA, testosterone, lipids, blood pressure.
- Hematocrit. The guideline’s stop threshold is 54%: pause until it falls, then adjust.
Monitoring schedule (guideline)
| When | What |
|---|---|
| Before | Two morning testosterone, blood count, PSA (over 40), lipids, blood pressure |
| 3–6 months | Testosterone (aim mid-normal), hematocrit, PSA, symptoms |
| Yearly | Same, plus bone density if it was low |
TRT vs a cycle
Same molecule. TRT: mid-normal level, indefinite, monitored, prescribed. Cycle: several times normal, defined period, often unmonitored. The harm in the research comes almost entirely from the second pattern. Some men run a “cruise” between cycles and call it TRT; unless it is a physiological dose with a prescription and monitoring, it is not, and the risk profile is that of continuous use. The safer-use principles apply either way.
For former steroid users
Rasmussen and colleagues found lower testosterone and hypogonadal symptoms in former users years after stopping. If your post-use bloodwork shows persistent suppression after adequate time and a recovery attempt, TRT is a recognised treatment for anabolic steroid-induced hypogonadism. That decision belongs with an endocrinologist who has your results, and it is a better outcome than years at half your baseline.
Frequently asked questions
How is hypogonadism diagnosed?
Consistent symptoms (low libido, fatigue, low mood, loss of muscle) plus low total testosterone on two separate morning samples, with free testosterone and SHBG when total is borderline. One low reading is not a diagnosis.
What is the difference between TRT and a cycle?
TRT aims for the middle of the normal range, indefinitely, with monitoring. A cycle runs several times that for a defined period. Same molecule; the exposure and the intent differ, and so does the risk profile.
Is TRT for life?
Usually. Once on it, your own production stays suppressed. Stopping means a recovery period like coming off a cycle. Men with reversible causes (obesity, sleep apnoea, medications) may be able to fix the cause instead.
Does TRT affect fertility?
Yes, it suppresses sperm production. Men planning children should raise this before starting; there are alternatives and adjuncts a physician can use.
Can a former steroid user get TRT?
If bloodwork shows persistent hypogonadism after adequate time off and recovery attempts, TRT is one of the treatments reviewed in the literature. It is a decision for an endocrinologist based on your results.
Sources
- Bhasin S et al. Testosterone therapy in men with hypogonadism: an Endocrine Society clinical practice guideline. JCEM, 2018.
- Rahnema CD et al. Anabolic steroid-induced hypogonadism: diagnosis and treatment. Fertility and Sterility, 2014.
- Rasmussen JJ et al. Former abusers of anabolic androgenic steroids exhibit decreased testosterone levels and hypogonadal symptoms years after cessation. PLoS One, 2016.