Low Testosterone: how to spot issues with your T levels

By: Osler Health International
Posted on: 25 Mar 2024

Testosterone, a hormone predominantly produced in the testicles, plays a crucial role in men’s health. Its impact extends beyond just physical characteristics like muscle mass and facial hair, influencing everything from bone density to mood and mental clarity. However, when testosterone levels decline, it can lead to a range of symptoms and health issues. This article explores what testosterone is, the signs of low testosterone (low-T), and what treatment options are available.

Understanding testosterone and its role in men’s health

Testosterone is integral to various physiological processes in the male body. It helps regulate sex drive (libido), bone mass, fat distribution, muscle mass and strength, hair growth and the production of red blood cells and sperm. As men age, it’s natural for testosterone levels to decline, but a sharp decrease can have significant impacts on their wellbeing.

Spotting the signs of low testosterone

If you’re experiencing symptoms like decreased libido, fatigue, or muscle loss, these could be signs of low testosterone. With a simple blood test, doctors can identify whether your symptoms are related to low testosterone, or something else.

Decreased libido

Libido, commonly referred to as sex drive, is significantly fueled by testosterone. A shift from a normal to a low or nonexistent libido could indicate a drop in testosterone levels. This reduction in libido encompasses not only a diminished interest in sexual activity but can also affect your overall sexual satisfaction and responsiveness.

Erectile dysfunction

Erectile dysfunction (ED) is influenced by a complex interplay of vascular, neurological, anatomical, situational, and psychological factors. Hormonal imbalances, particularly low testosterone, can disrupt the critical communication between your brain and testes, impairing your ability to achieve or maintain an erection. Additionally, a lack of nocturnal erections, commonly experienced during REM sleep, might also suggest low testosterone levels if these erections cease entirely.

Muscle mass reduction

Testosterone is a key anabolic hormone, essential for muscle growth and preservation. As testosterone receptors diminish with age, muscle development naturally slows. However, insufficient testosterone can accelerate this loss, leading to noticeable declines in muscle strength and mass. If you’re observing that your physical strength or muscle size is diminishing over time, it could be beneficial to evaluate your testosterone levels.

Mood and memory declines

Testosterone plays a crucial role in the brain, influencing mood and cognitive functions. Low levels of this hormone can lead to decreased mood and memory capabilities, potentially contributing to symptoms of depression. This is particularly prevalent in older men, where increasing testosterone levels might help alleviate these symptoms.

Persistent fatigue

Low testosterone is commonly associated with a persistent sense of fatigue, beyond what is typical from everyday activities. If you’re constantly feeling exhausted without a clear reason, a check for low testosterone levels might be warranted.

Health implications of low testosterone

The health implications of low testosterone extend beyond mere physical symptoms and can be associated with mental health also. It is important to understand how and whether hormonal imbalances are the root cause of issues. This can be ascertained through a discussion with a doctor and blood test.

Osteoporosis and bone health

One of the critical roles of testosterone is in the maintenance of bone density. Insufficient levels of this hormone can lead to a decrease in bone mass, known as osteoporosis, making bones fragile and significantly more prone to fractures. This can severely impact a man’s physical health and quality of life, increasing the risk of serious injuries from minor falls or accidents.

Cardiovascular health

Testosterone also plays a vital role in cardiovascular health. Low testosterone levels are linked to various heart-related issues, including an increased risk of developing heart disease. Men with low testosterone may face a higher likelihood of experiencing heart attacks and strokes, underscoring the importance of maintaining adequate hormone levels for heart health.

Mental health concerns

Beyond its physical implications, low testosterone is correlated with mental health challenges. Men suffering from low testosterone levels can experience mood disorders such as depression and anxiety. This is due to the hormone’s impact on neurotransmitters in the brain that regulate mood and emotional well-being, highlighting the necessity for balanced testosterone levels to maintain mental health.

Reproductive health issues

Testosterone is also fundamental to male reproductive health, influencing sperm production and overall fertility. Low testosterone levels can lead to decreased sperm production and other reproductive challenges, potentially complicating a man’s fertility.

Managing low testosterone levels 

Suspecting low testosterone levels can be concerning, but addressing it with the help of a trusted healthcare provider at a medical clinic in Singapore can lead to significant improvements. A simple blood test can initially confirm your hormone levels, providing a clear basis for any required interventions. Depending on the results, your doctor might recommend lifestyle changes such as increasing physical activity and improving diet or medical interventions like testosterone replacement therapy.

It’s also advisable to have regular male health check ups to monitor your health holistically, not just your hormone levels. These checks can help catch potential issues early and allow for timely intervention, ensuring long-term health and quality of life.

Lifestyle changes with Lifestyle medicine

Diet and physical activity are foundational in managing testosterone levels. A nutrient-rich diet that includes foods known to boost testosterone, such as lean meats, eggs, leafy green vegetables, and nuts, is recommended. Similarly, engaging in regular exercise, especially strength training and high-intensity interval training (HIIT), has been shown to naturally elevate testosterone levels. These lifestyle modifications not only support hormonal balance but also contribute to overall health and wellness.

Chronic stress is a known inhibitor of testosterone production. Managing stress through techniques such as mindfulness, meditation, and adequate sleep can help maintain healthy testosterone levels.

Testosterone Replacement Therapy (TRT)

If lifestyle adjustments are not sufficient to increase low testosterone levels, opting for Testosterone Replacement Therapy in Singapore can be considered. Testosterone Replacement Therapy (TRT) is designed to supplement the body with the testosterone it is no longer able to produce adequately on its own.

TRT is available in various forms, including injections, patches, or gels, depending on what best suits the patient’s needs and lifestyle:


Testosterone injections are typically administered every two to three weeks and can provide a quick elevation in hormone levels.


These are applied daily to the skin and release testosterone into the bloodstream gradually, providing a steady hormone level.


Applied daily to the skin, gels offer a convenient way to absorb testosterone directly through the skin.

Testosterone Replacement Therapy (TRT) requires careful monitoring by healthcare professionals to ensure efficacy and minimise side effects. Each method has its benefits and considerations. Injections can lead to peaks and troughs in hormone levels, which might cause fluctuations in mood and energy. Patches and gels provide more consistent hormone levels but require daily application and can sometimes cause skin irritation. Regular follow-up appointments are essential to adjust dosages or methods as necessary and to assess the therapy’s impact on various health markers, such as cholesterol levels and liver function.

Optimise your testosterone health with a healthcare professional 

The first step is understanding the signs and potential health implications of low testosterone. If you suspect your testosterone levels are low, it’s important to consult with a trusted healthcare professional who can provide a proper diagnosis and treatment for low testosterone in Singapore. Dr Neil Forrest, UK trained GP and Men’s Health co-Lead at Osler Health supports many men with testosterone needs.

Managing low testosterone can enhance your quality of life and well-being. Don’t let misconceptions hold you back from seeking help—it is important to stay informed and proactive about your health and go for regular men’s health screening. For more support and information, you can reach out to the team of international doctors and trusted healthcare providers at Osler Health, who are well-equipped to guide you through your options for managing and boosting low testosterone.

Don’t let low testosterone levels define your health and lifestyle. Consult with healthcare providers for comprehensive men’s health screening in Singapore and get personalised care. Take the necessary steps to optimise your hormonal health today!

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