Free testosterone Lab Results explained

Testosterone Test: Free & SHBG, High vs Low vs. Normal Levels

This section aims to clarify some of the most common misconceptions about testosterone, providing evidence-based insights into this vital hormone. The information provided regarding testosterone testing, free T levels, and supplements for low testosterone can be overwhelming. The most commonly asked questions about testosterone levels and their answers can be found below. Higher than normal T levels in otherwise healthy men do not cause as many adverse effects as a testosterone deficiency. Testosterone is an androgenic hormone produced in both males and females by their respective gonads and adrenal glands.

Managing testosterone levels involves a comprehensive approach that combines lifestyle interventions and, when necessary, medical interventions. Regular exercise, particularly strength training and high-intensity interval training (HIIT) can help boost testosterone production. A balanced diet rich in nutrients, including healthy fats, zinc, vitamin D, and latest bodybuilding supplements can also play a role in maintaining optimal hormone levels. Although females have lower testosterone levels than males, testosterone plays a crucial role in maintaining bone metabolism, cognition, and sexual function.

Furthermore, understanding testosterone levels is not limited to addressing hormonal imbalances. The distinction between free and total testosterone is not just academic but has practical implications in diagnosing and treating hormonal imbalances. For instance, a man with normal total testosterone levels but low free testosterone might still experience symptoms of low testosterone due to the insufficient bioavailable hormone. The testosterone levels in the blood serum were checked through a chemiluminescence microparticle immunoassay technique (Abbott-Alinity Ci) within 30 min of exercise and 24 h after exercise. This assessment was blinded, as the assessor (a lab technologist) did not know about allocating patients into groups or the intervention given to patients.

In women, though present in smaller quantities, it is essential for bone strength, ovarian function, and libido. However, testosterone’s influence transcends physical attributes; it also impacts mood, energy levels, and cognitive function. Because free testosterone plays a critical role in these physiological processes, measuring its percentage can provide a more accurate picture of an individual’s hormonal balance than total testosterone levels alone. It’s important to note that % Free Testosterone has specific reference ranges that vary by age and sex, which are crucial for accurate result interpretation. Additionally, testosterone levels, including free testosterone, exhibit diurnal variation, typically being highest in the morning, which is why testing is often conducted at specific times.

These substances can interfere with the body’s endocrine system and alter hormonal balance, leading to potential health issues. If your test for total testosterone comes back normal, it could be that a disproportionate amount of your testosterone is “locked up” as bound testosterone. Following up with a test for free testosterone can give your doctor a more accurate picture as to why you may be exhibiting the signs of low testosterone, even when your total testosterone levels appear to be in the normal range.

The average age of respondents was 29.85 years, regarded as the productive age group. As far as the average of weight of study participants was concerned, the average was 57.95 kg. Average height was recorded at 159.95, followed by an average BMI of 22.65, which was within the normal BMI range (Fig. 3). In 2025, clinics like AlphaMan, a men’s health center specializing in hormone optimization, are rethinking how testosterone therapy fits into modern masculinity. Because when it comes to low testosterone, the stakes extend far beyond the gym. Even high-performing men balancing careers, families, and fitness can find themselves battling unexplained fatigue, diminished focus, low libido, and persistent sluggishness despite adequate rest.

This section outlines the various approaches to treating testosterone imbalances, emphasizing the importance of personalized care. In men, low testosterone can lead to a decrease in sperm production, whereas high levels can impair sperm development. In women, both extremes of testosterone levels can disrupt ovulation and menstrual cycles, affecting fertility. For instance, opioid painkillers, some antidepressants, chemotherapy, and hormone therapies for prostate cancer can lower testosterone levels. It’s essential for individuals undergoing these treatments to have their testosterone levels monitored.

Hone-affiliated medical practices are independently owned and operated by licensed physicians who provide services using the Hone telehealth platform. For more information about the relationship between Hone and the medical practices, click here. Research-backed tools, tactics, and techniques to maximize your health, delivered to your inbox every Monday. Dr. James R. Staheli is the Medical Director for Broad Health, Hone Health’s affiliated medical practice and a family medicine doctor in Atlanta, Georgia. So if you just focus on your free testosterone numbers, you’re discounting the vast majority of the testosterone in your body. When the needle pricks your arm or hand, you may feel a slight sting or pain. This test measures the amount of unattached, or “free,” testosterone in your blood.

Hormonal balance, including optimal testosterone levels, is pivotal in preserving overall health and well-being across various physiological systems. Testosterone, predominantly recognized as a male sex hormone, is also present in females, albeit in smaller quantities, exerting multifaceted effects on both genders6. In males, testosterone is integral to the development of secondary sexual characteristics, such as facial hair growth and deepening of the voice, as well as supporting reproductive function.

Yes, TRT has been said to lower sperm count, especially if taken without precautions. That is one reason why some men are prescribed hCG (human chorionic gonadotropin) alongside TRT to maintain testicular function and fertility potential. Feel free to ask us any question you would like about TRT, medical weightloss, ED, or other topics related to men’s health.