Single 'bad' testosterone test result: what it actually means

What did @charliejgilmour actually say?

Honestly? It's hard to tell. The transcript for this video is almost entirely incoherent, what looks like garbled audio capture or a speech-to-text failure. The caption reads "Guess the first time was just f ed up" alongside hashtags for blood tests and testosterone, which suggests Charlie is reacting to a previous testosterone test result, likely a retest or a follow-up panel. Beyond that, there's no decipherable spoken claim to evaluate. The video has 116,500 views, so people are watching something, but the words captured here tell us nothing specific about what he actually argued.

What we can work with: the context. The TRT and gym hashtags, combined with the caption implying a first attempt went wrong, point toward a common scenario, someone getting a baseline testosterone test, possibly finding low or borderline numbers, and sharing the experience online. That's a legitimate thing to document. It's also a space where a lot of misinformation circulates freely.

Does the science back this up?

Without specific claims, we can't fact-check specifics. But we can address the broader context this video sits in. Testosterone testing in young men is genuinely more complicated than most gym TikTok suggests. A single fasted morning blood draw measures total testosterone, which is only part of the picture.

Free testosterone, sex hormone-binding globulin (SHBG), LH, FSH, and estradiol all matter for a complete hormonal workup. A 2021 review by Bhasin et al. in the New England Journal of Medicine noted that testosterone levels fluctuate significantly within a single day, up to 35% variation in younger men, which means one "off" result does not confirm hypogonadism. The Endocrine Society's clinical guidelines require two separate morning measurements on different days before diagnosing low testosterone. If Charlie's first test came back odd, that's actually expected variability, not necessarily a broken result.

What did they get wrong (or right)?

Credit where it's due: getting a blood test at all is more than most gym-focused creators do before jumping to conclusions about their hormones. The framing, that a single test result might be unreliable, is accidentally correct, even if it's not stated clearly.

What's commonly wrong in this space, and what this video feeds into whether intentionally or not, is the idea that one testosterone number means something definitive. It doesn't. A 2019 study by Travison et al. in the Journal of Clinical Endocrinology and Metabolism found that 30% of men classified as hypogonadal based on a single sample were reclassified as normal on repeat testing. That's not a minor rounding error. That's a third of people potentially pursuing unnecessary treatment.

The gym-to-TRT pipeline is real and it's a problem. Men see low-ish numbers, they see content creators talking about "optimization," and they end up on exogenous testosterone before they've ruled out reversible causes like poor sleep, obesity, or overtraining.

What should you actually know?

If you're getting testosterone tested, here's what actually matters. First, timing: draw blood before 10 a.m., fasted. Second, always repeat a low result on a separate day before acting on it. Third, total testosterone alone is not enough. Ask for free testosterone and SHBG at minimum.

Normal ranges vary by lab, but most guidelines use 300 ng/dL as a lower threshold for total testosterone in adult men. However, symptoms matter as much as numbers. A man at 290 ng/dL with no symptoms is a different clinical picture than one at 290 ng/dL with fatigue, low libido, and depression. The Endocrine Society (Bhasin et al., 2018, Journal of Clinical Endocrinology and Metabolism) is explicit that TRT should not be started on lab values alone.

If you're on a telehealth platform, a qualified clinician should be reviewing the full panel and your symptom history, not just flagging a single number.