Low Testosterone in Men: Signs, Testing, and Treatment Options in Orlando

Advance Preventive Medicine Urgent Care (APMUC) is a primary care practice in Downtown Orlando serving Central Florida with evidence-based preventive medicine, hormone optimization, and urgent care services. Dr. Saied Shemiranei is the founding physician at APMUC and specializes in preventive medicine, hormone optimization, and men’s health.

Many men in Orlando – managing traffic on I-4, balancing work demands, raising families – attribute persistent fatigue, afternoon energy crashes, and brain fog to the normal pace of life. These symptoms can have many causes, but when they cluster together, a hormone evaluation is worth considering. Let us slow this down for a moment and walk through what low testosterone actually is, why it matters, and what treatment looks like.

The Difference Between Aging and Biology

You’re not weak. You’re not just getting older. Your body might be signaling that testosterone levels have dropped below the range where your physiology functions optimally.

For decades, testosterone deficiency in men has been marketed as a vanity concern. The clinical reality is different. Low testosterone is a measurable metabolic marker associated with increased cardiovascular risk, cognitive changes, weight gain, and metabolic dysfunction. Yet most men don’t pursue testing because the conversation has been shaped by the wrong narrative.

Here’s what your body is actually doing:

Testosterone regulates how your cells generate energy, maintain bone density, balance blood sugar, and preserve mental clarity. When testosterone levels fall below approximately 300 ng/dL, these systems begin to shift in measurable ways. The good news: this is quantifiable, and treatment options exist.

What the Research Shows

Cardiovascular Health and Testosterone

Large observational studies have found that men with testosterone levels below 213 ng/dL show associations with increased risk of all-cause mortality. Men with levels below 153 ng/dL show associations with increased cardiovascular mortality. These findings come from studies like NHANES (National Health and Nutrition Examination Survey), which followed thousands of men over years.

It’s important to note: association is not the same as causation. Low testosterone may be a marker that other biological systems are already compromised, rather than a direct cause of heart disease. However, clinically, low testosterone should prompt a thorough cardiovascular and metabolic evaluation.

A 2024 meta-analysis of 30 randomized controlled trials examined whether testosterone replacement therapy increases cardiovascular risk in men with documented low testosterone. The analysis found no difference in major adverse cardiovascular events, myocardial infarction, stroke, or all-cause mortality between men receiving testosterone and men receiving placebo. This doesn’t mean testosterone is protective; it means that properly dosed and monitored therapy in men with low testosterone doesn’t appear to increase cardiovascular risk above baseline.

Cognitive Function and Testosterone

Research using standardized cognitive testing shows associations between low free testosterone and slower processing speed, reduced verbal fluency, and memory challenges. The relationship is dose-responsive: men with the lowest testosterone levels show the most pronounced cognitive differences.

The mechanism isn’t fully understood, but testosterone influences blood flow to the brain and affects neurotransmitter signaling. Men receiving testosterone replacement therapy often report improvements in mental clarity and memory, though individual responses vary.

Metabolic Health and Weight

Low testosterone is associated with increased risk of Type 2 diabetes and metabolic syndrome. The relationship is bidirectional: low testosterone increases diabetes risk, and obesity can suppress testosterone production. This creates a cycle that’s difficult to reverse with lifestyle changes alone.

In one study, hypogonadal men with metabolic syndrome who received testosterone replacement plus lifestyle intervention saw reversal of metabolic syndrome in 83% of cases, compared to 30% of men who received lifestyle intervention alone. This suggests that for some men with both low testosterone and metabolic dysfunction, hormone optimization plays a real role in recovery.

The Symptoms You Actually Experience

Men typically don’t arrive at a doctor’s office saying “I have low testosterone.” They describe:

Research shows that the most frequently reported symptoms cluster in three areas: fatigue, cognitive changes, and mood.

Treatment Isn’t One-Size-Fits-All

If you’re a candidate for testosterone replacement therapy (which requires medical evaluation), three main delivery methods exist. Each has real trade-offs.

Who Should Not Start Testosterone Replacement Therapy Without Specialty Input

Before starting treatment, Dr. Shemiranei performs a thorough evaluation to ensure TRT is appropriate and safe. The following situations require additional evaluation or may preclude TRT:

• Active prostate or breast cancer – testosterone can stimulate cancer cell growth
• Untreated or severe obstructive sleep apnea – can increase cardiovascular and clotting risk
• Baseline hematocrit already elevated (above 50%)
• Recent major cardiac event (myocardial infarction, unstable angina, stroke) without cardiac clearance
• Men actively trying to conceive – TRT suppresses sperm production; alternatives like clomiphene citrate or HCG may be more appropriate
• History of clotting disorders or ongoing anticoagulation without careful monitoring
• Severe untreated hypertension

A Critical Point: Fertility and Testosterone

Alternative treatments exist for hypogonadal men who want to preserve fertility, including:

• Clomiphene citrate (Clomid) – boosts the body’s own testosterone production
• Human chorionic gonadotropin (HCG) therapy
• Combination approaches

If you’re considering testosterone replacement and may want to father children, discuss these options with Dr. Shemiranei before starting.

Monitoring: Safety Through Careful Supervision

Testosterone replacement is effective when properly supervised. Supervision means baseline testing, follow-up labs at defined intervals, and dose adjustments based on your response.

Before Starting Treatment

Dr. Shemiranei orders baseline labs that include:

• Total and free testosterone (morning draw, as levels fluctuate throughout the day)
• Luteinizing hormone (LH) and follicle-stimulating hormone (FSH)
• Complete blood count (CBC) to establish baseline hematocrit and hemoglobin
• Metabolic panel (CMP) for liver and kidney function
• Lipid panel
• Prostate-specific antigen (PSA) for men 40 and older
• Digital rectal exam (DRE)
• Hemoglobin A1c to screen for diabetes
• Screening for obstructive sleep apnea (OSA), as untreated OSA increases cardiovascular risk and can be worsened by TRT

This baseline establishes whether your symptoms reflect low testosterone or another condition, and provides comparison points as you progress through treatment.

During Treatment: Typical Monitoring Schedule

After the first year, routine monitoring continues annually – including testosterone, hematocrit, PSA, and lipids.

The Hematocrit Question

Testosterone stimulates red blood cell production. This is generally beneficial, as more red blood cells means more oxygen-carrying capacity. However, if hematocrit rises excessively (typically above 52%), blood becomes thicker, raising theoretical risk of clotting.

This is manageable through:

• Dose adjustment or extended intervals between treatments
• Therapeutic phlebotomy (medical blood donation) if levels exceed 52-54%
• Close monitoring and individualized adjustments

Most men adjust their therapy and continue treatment successfully.

Sleep Apnea and Clotting Risk

Untreated obstructive sleep apnea (OSA) increases cardiovascular risk independently and can worsen with testosterone therapy. Before starting, we screen for OSA symptoms. If OSA is suspected, a sleep study may be recommended before initiating treatment.

Similarly, men with clotting disorders or on anticoagulation therapy need careful evaluation and monitoring. Testosterone can affect clotting factors, so this requires individualized planning.

Sexual Function and Testosterone

Erectile dysfunction and low libido are often the concerns that bring men to seek evaluation. They’re also among the symptoms most responsive to testosterone optimization.

Low testosterone reduces nitric oxide production in penile tissue and suppresses dopamine and serotonin signaling. Erectile dysfunction in a hypogonadal man is a hormonal problem with a hormonal solution, not a psychological issue.

A 12-month study of hypogonadal men on testosterone therapy found significant improvements in sexual function domains: libido, erectile function, ejaculatory function, and overall satisfaction. Men who were previously unresponsive to medications like sildenafil (Viagra) or tadalafil (Cialis) often regain responsiveness once testosterone is normalized.

This isn’t about cosmetics. Erectile dysfunction is a known marker of cardiovascular disease and metabolic dysfunction. Restoring sexual function often reflects restoration of broader health.

Cardiovascular Safety: The Evidence You Should Know

Many men avoid TRT due to cardiovascular concerns. This deserves a clear, evidence-based answer.

What Changed Between 2015 and Now

In 2015, the FDA issued a safety label warning that testosterone products might increase cardiovascular risk. This was based on observational data and some older studies with limitations. Concern spread, and many men avoided treatment.

Recent Clinical Evidence

A 2024 meta-analysis synthesizing 30 randomized controlled trials involving 8,126 men on testosterone and 7,310 on placebo found no difference in major adverse cardiovascular events, myocardial infarction, stroke, or all-cause mortality between groups. A 2024 systematic review reached similar conclusions.

This doesn’t mean testosterone is cardio-protective. It means that in men with documented hypogonadism, properly dosed and monitored replacement doesn’t appear to increase cardiovascular risk above baseline.

One note: one large trial (TRAVERSE) reported a slightly elevated rate of atrial fibrillation (heart rhythm disturbance) in the testosterone group, but this finding wasn’t replicated in other studies. Men with a personal history of arrhythmia need careful evaluation before starting TRT.

Why Does Treatment Not Increase Risk?

Several mechanisms may explain why appropriate testosterone replacement doesn’t increase cardiovascular events:

• Low testosterone itself is a cardiovascular risk marker, suggesting underlying metabolic disease. Treating the marker doesn’t necessarily reverse the underlying condition without lifestyle changes.
• Testosterone can improve insulin sensitivity and reduce visceral (abdominal) fat, both beneficial for cardiovascular health.
• Testosterone can improve exercise capacity, allowing men to become more active.
• Some evidence suggests testosterone improves vascular function and reduces inflammatory markers.

The clinical question isn’t whether TRT in isolation is protective. It’s whether carefully supervised therapy in a hypogonadal man, combined with lifestyle management, is part of a sound preventive strategy. Current evidence suggests it can be.

Your Next Step: A Hormone Evaluation

Your health should not depend on guesswork.

If you’re experiencing persistent fatigue, afternoon energy crashes, brain fog, mood changes, erectile dysfunction, or unexplained weight gain, a hormone evaluation can provide clarity. Some men find their testosterone is actually normal and their symptoms have a different root cause such as sleep problems, thyroid dysfunction, depression, or lifestyle factors. That information is valuable. Others find their testosterone is genuinely low and benefit from treatment.

The only way to know is through testing.

At APMUC

Dr. Shemiranei and the team at Advance Preventive Medicine Urgent Care provide hormone evaluation and testosterone replacement therapy in a primary care setting. We perform detailed baseline testing, engage in shared decision-making about treatment options, and monitor carefully throughout therapy.

Frequently Asked Questions