The Most Important Thing to Know Before Starting Testosterone Replacement Therapy (TRT)

If you're considering testosterone replacement therapy (TRT), you've probably already spent some time researching it online. You may have read about the benefits, heard success stories from other men, or watched videos discussing low testosterone symptoms and treatment options.

But before starting TRT, there is one thing that many men don't fully understand: TRT requires ongoing monitoring and medical management.

TRT Isn't a "Set It and Forget It" Treatment

According to Thunderbird Men’s Health’s Dr. Jordan Glenn, one of the biggest misconceptions about testosterone therapy is that it's like taking blood pressure medication.

"The biggest thing is that this is not like your blood pressure medicine or something, where you just get on it and you just stay on it," Dr. Glenn explains.

Unlike many medications that can be prescribed and left largely unchanged for years, testosterone therapy requires regular follow-up care to ensure that your treatment remains safe and effective.

"It needs to be monitored; you need to be monitored," he says.

Why Monitoring Matters

Some men view regular monitoring as an inconvenience. Blood tests aren't fun, and the idea of ongoing lab work can discourage some people from getting treated.

However, those blood tests allow your provider to evaluate how your body is responding to treatment and make adjustments when necessary. At a minimum, most men should expect blood work at least once a year, though twice-yearly testing is often recommended.

Routine TRT monitoring typically includes checking your testosterone levels, PSA (Prostate-Specific Antigen), estradiol (a measure of estrogen levels), a Complete Blood Count (CBC), and other health markers based on your individual needs. These tests help your provider ensure that your treatment remains both effective and safe over the long term.

These tests help ensure your treatment remains both effective and safe over the long term.

Choosing the Right TRT Provider Matters

Another challenge is that not every healthcare provider has extensive experience managing testosterone replacement therapy.

"Not all doctors are up on testosterone or really are doing TRT," Dr. Glenn notes.

That's why it's important to work with a provider who understands hormone optimization, knows how to interpret your lab results, and can adjust your treatment plan when necessary.

"Having someone like me who knows how to handle it and is willing to manage it with you is a great option," he says.

The Bottom Line

Before starting TRT, understand that it isn't a one-time prescription. Successful testosterone therapy involves an ongoing partnership between you and your provider.

There needs to be regular blood testing, monitoring, and follow-up care to make sure you're getting the benefits of treatment while maintaining your health and safety.

And honestly, if you're a man in your 40s or beyond, regular blood work should already be part of your overall health maintenance routine.

As Dr. Glenn puts it, "There needs to be ongoing monitoring, blood testing, checking in with you, essentially. If you're a guy in your 40s, you should be getting regular blood draws."

This post has been reviewed by Dr. Jordan Glenn.

Published on
June 23, 2026
Written by
Cameron Glenn

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