What They Don't Tell You About TRT

Testosterone replacement therapy (TRT) has become one of the fastest-growing treatments in men's health. Scroll through social media and you'll find promises of increased energy, muscle growth, better mood, improved confidence, and a revived sex drive. For many men with true testosterone deficiency, TRT can be life changing.

But there is another side of the conversation that often gets left out.

At The Wellness Lounge, we frequently meet men in their 20s, 30s, and 40s who started TRT because they were tired, gaining weight, or struggling with motivation. Months or years later, they're asking a different question:

"Why didn't anyone tell me this could affect my fertility?"

The goal of this article isn't to discourage men from pursuing TRT. It's to make sure they're making an informed decision and exploring the root cause of low testosterone before committing to lifelong hormone replacement.

Low Testosterone Is Often a Symptom, Not the Root Problem

Testosterone naturally fluctuates throughout the day and throughout life. A single low lab value doesn't necessarily mean your body has stopped producing testosterone.

Many factors can temporarily suppress testosterone production, including:

• Poor sleep

• Obesity and insulin resistance

• Chronic stress

• Overtraining

• Alcohol use

• Certain medications

• Iron deficiency

• Nutrient deficiencies

• Sleep apnea

• Chronic inflammation

• Thyroid dysfunction

• Acute illness

Addressing these underlying issues may significantly improve testosterone production without lifelong hormone therapy.

The question shouldn't start with, "How do we replace testosterone?"

But, "Why did testosterone become low in the first place?"

TRT Can Shut Down Your Natural Testosterone Production

Most people are surprised to learn that testosterone replacement doesn't simply "add more testosterone."

When you introduce testosterone from outside the body, your brain senses there is plenty circulating in the bloodstream. In response, it decreases production of two important hormones made by the pituitary gland:

• Luteinizing Hormone (LH)

• Follicle Stimulating Hormone (FSH)

These hormones are what tell the testes to produce both testosterone and sperm.

As LH and FSH decline, your testes receive less stimulation and gradually reduce their own production.

For many men this results in:

• Testicular shrinkage

• Reduced sperm production

• Lower fertility

• Dependence on TRT to maintain testosterone levels

This is normal physiology, but it is rarely explained before treatment begins.

The Fertility Conversation Is Often Missed

This may be the single most important discussion that isn't happening.

A healthy man produces roughly 1,000 to 1,500 sperm every second, a process that takes approximately 74 days from start to finish. Continuous stimulation from LH and FSH is required throughout this process.

When TRT suppresses these hormones:

• Sperm counts often fall dramatically.

• Some men develop severe oligospermia (very low sperm counts).

• Others become azoospermic, meaning no sperm are detectable in the semen.

Not every man becomes infertile, and some maintain sperm production, but fertility can be significantly impaired.

For couples hoping to conceive within the next few years, this discussion is essential.

TRT Is Not Birth Control

While TRT frequently lowers sperm production, it should never be relied upon as contraception. Pregnancies still occur while men are receiving TRT.

If avoiding pregnancy is the goal, appropriate contraception should still be used.

Recovery Isn't Always Immediate

One of the biggest misconceptions is that stopping TRT instantly restores natural testosterone production.

Unfortunately, recovery can take:

• Several months

• Six months or longer

• More than a year in some men

Recovery depends on factors including:

• Age

• Duration of TRT

• Baseline fertility

• Testicular health

• Individual physiology

Some men require medications such as human chorionic gonadotropin (hCG) or selective estrogen receptor modulators (SERMs) under the supervision of a qualified clinician to help stimulate recovery.

There Are Other Side Effects Worth Monitoring

TRT is generally safe when appropriately prescribed and monitored, but it isn't without risks.

Monitoring typically includes:

• Hematocrit and hemoglobin, as TRT can increase red blood cell production

• Estradiol levels

• Blood pressure

• Lipid markers

• Liver function when indicated

• PSA and prostate evaluation when appropriate based on age and risk factors

Potential side effects can include:

• Acne

• Oily skin

• Increased red blood cell count (erythrocytosis)

• Mood changes

• Sleep apnea worsening

• Breast tenderness from elevated estrogen

• Fluid retention

Most side effects can be managed with proper follow-up, but they shouldn't be ignored.

The Good News: There Are Alternatives for Some Men

Not every man with low testosterone requires immediate replacement therapy.

Depending on the underlying cause and a man's fertility goals, treatment may focus on restoring the body's own hormone production.

Possible strategies include:

• Weight loss and improved metabolic health

• Resistance training

• Optimizing sleep

• Treating sleep apnea

• Reducing alcohol intake

• Correcting vitamin and mineral deficiencies

• Managing chronic stress

• Addressing thyroid dysfunction

• Treating chronic illness

• Cold Exposure

• Fertility-preserving medications such as hCG or SERMs in appropriate patients

The right approach depends on the individual.

If You Want Children, Talk About Fertility First

One of the hardest conversations we have is with couples who have been trying to conceive for months, only to discover that the male partner's TRT may be contributing to low sperm counts.

This doesn't mean TRT was the wrong decision.

It means the fertility discussion should have happened before treatment started.

If fatherhood is important to you, whether next year or five years from now, make sure your healthcare provider knows that before beginning testosterone therapy.

There may be options that better align with your long-term goals.

Our Approach

At The Wellness Lounge, we believe hormones should never be viewed in isolation.

Before recommending hormone replacement, we look at the bigger picture:

• Sleep quality

• Nutrition

• Metabolic health

• Exercise habits

• Stress

• Nutrient status

• Inflammation

• Thyroid function

• Fertility goals

For men who truly need TRT, it can be an excellent therapy that improves quality of life. But informed consent means understanding both the benefits and the tradeoffs.

Because the best decision is one made with the whole story, not just the highlights.

References

1. Bhasin S, Brito JP, Cunningham GR, et al. Testosterone Therapy in Men With Hypogonadism: An Endocrine Society Clinical Practice Guideline. Journal of Clinical Endocrinology & Metabolism. 2018;103(5):1715-1744.

2. Mulhall JP, Trost LW, Brannigan RE, et al. Evaluation and Management of Testosterone Deficiency. American Urological Association Guideline. 2018 (updated periodically).

3. Patel AS, Leong JY, Ramos L, Ramasamy R. Testosterone Is a Contraceptive and Should Not Be Used in Men Who Desire Fertility. World Journal of Men's Health. 2019;37(1):45-54.

4. Crosnoe LE, Kim ED, Perkins AR. Exogenous Testosterone: A Preventable Cause of Male Infertility. Translational Andrology and Urology. 2013;2(2):106-113.

5. World Health Organization. WHO Laboratory Manual for the Examination and Processing of Human Semen. 6th edition. 2021.