Am I a Candidate for TRT? Who Qualifies for Testosterone Therapy

Physician-reviewed TRT education

Am I a Candidate for TRT?

Two things have to be true before a physician will prescribe testosterone: symptoms that fit testosterone deficiency, and blood work that confirms it. A number by itself does not qualify you, and a normal number does not always mean nothing is wrong.

Medically reviewed by Dr. Timothy Mackey, D.O.
Medical Director · Updated September 2026

The two findings a physician is looking for

1. Symptoms that fit testosterone deficiency

Low testosterone is a clinical diagnosis, not a laboratory one. Symptoms commonly associated with it include persistent fatigue that sleep does not fix, reduced sex drive, erectile difficulty, loss of muscle mass or strength despite training, increased body fat, low mood or irritability, and difficulty concentrating.

These symptoms are real, but none of them is specific to testosterone. That is the single most important thing to understand before you get tested, and it is the reason the evaluation looks at more than one hormone.

2. Blood work that confirms it

Testosterone is drawn in the morning, when levels are highest, and a single low result is generally not enough to act on. Repeat morning testing on a separate day is commonly recommended before a diagnosis is made, because day-to-day variation is substantial and a single draw can mislead in either direction.

A full evaluation usually includes total testosterone, free testosterone where appropriate, sex hormone-binding globulin, luteinizing hormone and follicle-stimulating hormone, estradiol, a complete blood count, a metabolic panel, thyroid studies and PSA where age-appropriate. Our guide to the blood tests needed before starting TRT walks through what each one is for.

Is 300 ng/dL automatically low?

No. The American Urological Association uses total testosterone below 300 ng/dL as a reasonable diagnostic cutoff, but it is a decision point in an evaluation, not an automatic diagnosis and not an automatic prescription threshold.

Two men can both measure 280 ng/dL and reach opposite conclusions. One has classic symptoms, a confirmatory second draw and an LH pattern pointing to a testicular cause. The other feels fine, drew his blood at 4 p.m. after a poor night's sleep, and returns a normal result on a proper morning repeat. Only one of them has a diagnosis.

The reverse is also true. A result in the low-normal range does not automatically rule out a problem when symptoms are significant and other causes have been excluded. For more on how to read a result, see normal testosterone levels in men by age.

What disqualifies you from TRT?

Some conditions mean testosterone should be delayed, avoided, or treated only after something else is managed first. These commonly include:

• Untreated or active prostate cancer, or concerning prostate findings on examination or PSA
• Markedly elevated hematocrit
• Untreated severe obstructive sleep apnea
• Uncontrolled heart failure or a recent major cardiovascular event
• Thrombophilia or a clotting disorder
• Current plans to conceive a child

Most of these are reasons to pause, not permanent exclusions. Elevated hematocrit and untreated sleep apnea in particular are often manageable, and treating them can change both the safety picture and the symptoms that prompted the visit. Our article on why doctors don't always prescribe testosterone covers this in more detail, and hematocrit levels on testosterone therapy explains the monitoring involved.

If you want children now or later, read this first

This is the disqualifier men are most often unaware of. Exogenous testosterone suppresses the brain signals that drive sperm production, and it can meaningfully reduce fertility while you are on it. The 2024 AUA/ASRM male infertility guideline advises against testosterone therapy for men interested in current or future fertility.

That does not necessarily end the conversation. Other approaches, including enclomiphene, clomiphene and hCG, work through different mechanisms and are sometimes considered when fertility is a priority. If you may want children, say so at the first visit rather than after treatment has started. See TRT and male fertility.

Symptoms that are commonly mistaken for low testosterone

A clinic that treats every tired man with testosterone is not evaluating him. Several conditions produce an overlapping symptom picture and some of them also lower testosterone, which means treating the testosterone alone can leave the actual problem in place:

• Obstructive sleep apnea — fatigue, low libido, poor concentration, and genuinely suppressed testosterone
• Thyroid disease — fatigue, weight change, low mood, cold intolerance
• Depression — low energy, low libido, anhedonia, poor concentration
• Obesity and insulin resistance — which lower testosterone through several mechanisms at once
• Heavy alcohol use
• Iron deficiency or anemia
• Medications — including opioids, some antidepressants, and glucocorticoids

A proper evaluation looks for these before concluding that testosterone is the answer. Being screened for them is a sign the evaluation is being done correctly, not a sign of being stonewalled.

Is it hard to get approved for TRT?

Two different questions hide inside this one.

Getting an insurer to pay can be difficult. Insurers frequently require documented low morning testosterone results, repeat testing, and prior authorization before approving coverage.

Getting a physician to prescribe is a clinical decision, and it turns entirely on the three conditions at the top of this page. NovaGenix is a self-pay practice and does not bill health insurance, which removes the prior-authorization step but does not change the clinical standard. Pricing is published on our TRT cost and pricing page.

If a clinic will prescribe testosterone without symptoms, without confirmed morning labs, or without screening for the conditions listed above, that is not a lower barrier. That is a lower standard.

How to actually find out

You cannot answer this question by reading, and neither can we. It requires a morning blood draw and a physician's review of the result alongside your symptoms and history.

Frequently asked questions

What testosterone level qualifies for TRT?

There is no single number that qualifies you. The AUA uses total testosterone below 300 ng/dL as a reasonable diagnostic cutoff, but the result has to be confirmed on a repeat morning draw and paired with symptoms before it supports a diagnosis.

What disqualifies you from TRT?

Untreated or active prostate cancer, markedly elevated hematocrit, untreated severe obstructive sleep apnea, uncontrolled heart failure, a recent major cardiovascular event, a clotting disorder, or current plans to conceive. Most are reasons to delay rather than permanent exclusions.

Is 36 too early to start TRT?

Age is not the criterion; the diagnosis is. Younger men do warrant a more thorough search for a reversible cause, because a genuinely low result in your thirties is more likely to have an identifiable explanation than the same result at seventy. Fertility planning also carries more weight at that age.

Can I be a candidate if my testosterone is normal?

Sometimes. A low-normal result with significant symptoms warrants a fuller workup rather than a dismissal, and free testosterone and SHBG can change the interpretation of a normal total. Testosterone is not prescribed on symptoms alone, but a single normal number does not close the file either.

Does insurance cover TRT?

It sometimes does, typically after documented low morning results and prior authorization. NovaGenix is a self-pay practice and does not bill insurance. Our pricing page lists costs directly.

How long does it take to find out whether I'm a candidate?

Lab turnaround is typically a few business days. Where a repeat morning draw is needed to confirm a low result, the evaluation takes longer by design.

Medical and clinical sources

• American Urological Association: Testosterone Deficiency Guideline
• AUA/ASRM Male Infertility Guideline (2024)
• Long-term testosterone therapy: benefits, risks and monitoring
• TRT and low testosterone treatment at NovaGenix

This article is educational and is not a substitute for individual medical advice. Whether testosterone therapy is appropriate for you can only be determined by a licensed clinician who has reviewed your symptoms, history, examination and laboratory results.