How to Get Tested for Low Testosterone: A Step-by-Step Guide

Step 1: Bring your symptoms to a clinician

Start with a visit — in person or by telehealth — with a primary care clinician. Come prepared to describe your symptoms: fatigue, low sex drive, difficulty with erections, reduced muscle mass, mood changes, difficulty concentrating, or increased body fat. The more specific you can be about when symptoms started and how they affect daily life, the more useful the conversation will be.

You do not need a referral to a urologist or endocrinologist for an initial testosterone test — primary care handles this routinely 2Ref 2Mulhall JP, Trost LW, Brannigan RE, et al. (2018).Evaluation and Management of Testosterone Deficiency: AUA Guideline.Morning two-draw confirmation protocol; full hormonal workup (LH, FSH, SHBG, prolactin); primary care as appropriate first-line evaluator.

Step 2: The blood draw — timing matters

Testosterone follows a daily (diurnal) rhythm — levels are highest in the early morning (roughly between 7 and 10 a.m.) and decline through the afternoon and evening 1Ref 1Crawford ED, Barqawi AB, O'Donnell C, Easley JD (2015).Measurement of testosterone: how important is a morning blood draw?.Diurnal variation of testosterone with peak levels between 7 and 10 a.m.; rationale for morning blood draw as the clinical standard. Most guidelines recommend drawing the sample in the morning for the most reliable reading 2Ref 2Mulhall JP, Trost LW, Brannigan RE, et al. (2018).Evaluation and Management of Testosterone Deficiency: AUA Guideline.Morning two-draw confirmation protocol; full hormonal workup (LH, FSH, SHBG, prolactin); primary care as appropriate first-line evaluator.

Most clinicians order total testosterone as the first-line test; some also order free testosterone, which measures the portion not bound to proteins and therefore biologically available to tissues.

Step 3: What other tests are typically ordered?

A responsible workup usually goes beyond a single number. Your clinician may also order 2Ref 2Mulhall JP, Trost LW, Brannigan RE, et al. (2018).Evaluation and Management of Testosterone Deficiency: AUA Guideline.Morning two-draw confirmation protocol; full hormonal workup (LH, FSH, SHBG, prolactin); primary care as appropriate first-line evaluator:

• LH and FSH — hormones from the pituitary that signal the testes to produce testosterone; abnormal levels help identify where the problem originates
• SHBG (sex hormone-binding globulin) — affects how much testosterone is available to the body
• Prolactin — elevated levels can suppress testosterone and may indicate a pituitary issue
• Thyroid panel — since thyroid dysfunction can closely mimic low-testosterone symptoms 3Ref 3Jonklaas J, Bianco AC, Bauer AJ, et al. (2014).Guidelines for the Treatment of Hypothyroidism: Prepared by the American Thyroid Association Task Force on Thyroid Hormone Replacement.Thyroid dysfunction as a close clinical mimic of low testosterone symptoms, warranting TSH testing in the differential
• Complete blood count and metabolic panel — to rule out anemia and other causes of fatigue, and to establish baselines

Step 4: How are results interpreted?

A single low result is not automatically a diagnosis of hypogonadism (the medical term for clinically low testosterone). Testosterone fluctuates, and lab reference ranges vary between laboratories. Standard practice is to confirm a low result with a second morning draw before drawing conclusions or discussing treatment 2Ref 2Mulhall JP, Trost LW, Brannigan RE, et al. (2018).Evaluation and Management of Testosterone Deficiency: AUA Guideline.Morning two-draw confirmation protocol; full hormonal workup (LH, FSH, SHBG, prolactin); primary care as appropriate first-line evaluator.

A clinician weighs the lab number against your symptoms, age, overall health, and any other findings. Symptoms plus consistently low lab values together point toward a clinical diagnosis — a low number alone without symptoms is a different and less clear-cut conversation.

Can I order a testosterone test myself?

Some labs and direct-to-consumer services allow you to order a testosterone test without a clinician's order. This can be a useful first step to understand where your levels stand, but the result still needs clinical interpretation alongside your symptoms and full health picture — and treatment cannot be initiated without a prescribing clinician. A low self-ordered result is useful information to bring to a primary care visit, not a standalone action item.