Hormone & Endocrine - Bloody Good
Hormone

Testosterone

Assess your hormonal vitality with our comprehensive Testosterone Blood Test. Whether you're experiencing low energy, reduced muscle mass, or changes in libido, this test measures your total testosterone levels to help identify hormonal imbalances affecting your overall well-being and quality of life.

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Testosterone

Feeling less energetic, motivated, or physically capable than before, and wondering if declining testosterone levels could be affecting your strength, mood, and overall vitality?

Overview

Testosterone is often called the 'king of hormones' because it acts like your body's personal motivational speaker and performance enhancer all in one. This powerful hormone drives energy, builds muscle, sharpens mental focus, and fuels sexual desire in both men and women. While men produce it primarily in the testicles and women in smaller amounts through the ovaries and adrenal glands, testosterone plays crucial roles for everyone—from maintaining bone strength and muscle mass to supporting mood and cognitive function.

Here's the challenge: testosterone naturally declines as we age, typically dropping 1-2% each year after 30, but factors like stress, poor sleep, weight gain, and certain health conditions can cause levels to plummet even faster. When testosterone runs low, you might notice fatigue creeping in, difficulty building muscle, increased body fat, reduced motivation, or a declining interest in activities you once enjoyed. Our testosterone test helps you understand whether hormonal imbalances might be behind changes in your physical performance, mental clarity, or overall vitality, giving you the insights needed to take targeted action and reclaim your energy.

Reviewed by Dr. Vu Tran
Bloody Good’s Chief Medical Officer

Symptoms

You may benefit from this test if you experience:
Low sex drive in men Erectile dysfunction Loss of muscle mass in men Increased body fat around waist (men) Decreased morning erections Infertility in men Feeling tired all the time Difficulty achieving orgasm Deepening voice in women Enlarged breasts in men Voice changes in men Acne along jawline or chin Difficulty building or maintaining muscle

Purpose

Essential for men and women experiencing fatigue, reduced libido, difficulty building muscle, mood changes, or age-related vitality decline. Important for investigating unexplained symptoms, monitoring hormone replacement therapy, or optimising physical and mental performance.

How to prepare

Morning collection (7-10 AM) essential as testosterone levels peak in early morning and decline throughout day. No fasting required. Avoid intense exercise for 24 hours before testing. Inform healthcare provider about medications, supplements, or recent illness that might affect hormone levels. Consider timing relative to menstrual cycle for women.

Understanding results

Men: Normal ranges vary by age - 20-30 years: 15-25 nmol/L; 40-50 years: 12-20 nmol/L; >60 years: 9-15 nmol/L. Women: 0.7-2.8 nmol/L throughout cycle. Low levels may indicate hypogonadism, aging, or other hormonal issues. High levels might suggest PCOS in women or other endocrine disorders. Results interpreted with symptoms and clinical context.

After the test

If low, consult healthcare provider specializing in hormone health for comprehensive evaluation. Consider lifestyle interventions including strength training, adequate sleep, stress management, and nutrition optimisation. Hormone replacement therapy may be appropriate for a significant deficiency. Address underlying causes such as obesity, sleep disorders, or medications affecting testosterone production.

Frequently Asked Questions

  • Total testosterone measures all testosterone in blood, while free testosterone measures only the unbound, biologically active portion. Both provide valuable but different information about hormone status.
  • Testosterone levels follow a circadian rhythm, peaking in the morning and declining throughout the day. Morning testing captures peak levels for accurate assessment.
  • Absolutely. Women produce testosterone too, and deficiency can cause fatigue, low libido, muscle weakness, and mood changes. Testing helps identify hormone-related symptoms in women.
  • Levels can fluctuate due to stress, illness, exercise, and other factors. Consistently low levels across multiple tests are more significant than single low results.
  • Sleep quality, exercise (especially strength training), body weight, stress levels, alcohol consumption, and diet all significantly influence testosterone production.
  • Baseline testing around age 30-35 is reasonable, with regular monitoring if symptoms develop. Earlier testing may be appropriate for specific symptoms or risk factors.
Testosterone

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How it works

What to expect

We want you to feel bloody good—inside and out. Regular testing isn’t just about checking your current health; it helps you spot abnormal values you might not know about.

1

Book your referral

Choose the testing that suits your goals. After ordering, you will receive your referral by email.

2

Collect your sample

Easy sample collection at one of our 4000+ partner collection centres throughout Australia. Find nearest

3
Receive your results

Receive your results

View your lab results and receive a personalised review from the secure Bloody Good platform.

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