If you think you have low testosterone, the first doctor to see is usually your primary care physician. They can order a morning blood test, review your symptoms, and refer you to a specialist if needed. The specialists who most often manage testosterone treatment are endocrinologists and urologists.
Testosterone is not a vitamin you top up when you feel tired. It is a controlled prescription hormone, and in the United States it is a Schedule III controlled substance. That means a licensed prescriber has to evaluate you, document a diagnosis, and monitor you over time. Not every doctor will do this, and not every case should be treated.
Who Prescribes Testosterone Doctors Who Can Help?
Several types of clinicians can legally prescribe testosterone in the US, but they differ in how they approach it.
Your primary care physician is the usual starting point. Family doctors and internists order the initial lab work, rule out other causes of fatigue or low libido, and decide whether a referral makes sense. Many are comfortable managing straightforward cases. Others prefer to hand off to a specialist.
Endocrinologists specialize in hormones. They are the go-to for cases that are complicated — low testosterone caused by a pituitary problem, for example, or cases that overlap with thyroid disease, diabetes, or obesity. If your testosterone is low because of something upstream in the hormonal chain, an endocrinologist is trained to find it.
Urologists focus on the male reproductive and urinary systems. Many urologists run dedicated men’s health clinics and manage testosterone therapy routinely. They are also the specialists who handle fertility concerns, which matter a great deal because testosterone therapy can suppress sperm production.
Other prescribers include nurse practitioners and physician assistants working under a supervising physician, and in some states, pharmacists with prescriptive authority. Telehealth companies also prescribe testosterone, and this is where the picture gets murkier. Some are legitimate and follow guidelines. Others sell product first and evaluate second.
What Does the Evaluation Actually Involve?
A proper workup is not a single blood draw. Established clinical guidelines call for measuring total testosterone in the morning, typically before 10 a.m., because levels fluctuate through the day and peak early. A single low afternoon reading can be misleading.
If the first result is low, the standard approach is to confirm it with a second morning measurement. Guidelines from major endocrine and urology organizations recommend confirming low results before starting treatment. This step exists because a one-time low value is common and does not always mean anything is wrong.
Testing usually also includes:
- Luteinizing hormone and follicle-stimulating hormone, to see whether the problem starts in the testicles or in the brain
- Prolactin, which can be elevated by medications, a pituitary tumor, or other causes
- Hemoglobin and hematocrit, because testosterone raises red blood cell production
- Prostate-specific antigen in appropriate patients
- Estradiol in some cases
Your doctor should also ask about sleep, medications, alcohol use, and depression. Opioids, glucocorticoids, and some other drugs can suppress testosterone. So can severe obesity, uncontrolled sleep apnea, and chronic illness. Treating the underlying problem sometimes restores testosterone without any prescription at all.
What Counts as Low Testosterone?
There is no single number that defines deficiency. This is one of the genuinely debated areas in medicine.
Most clinical guidelines use a total testosterone threshold in the range of 300 ng/dL as a rough lower bound, with the understanding that symptoms matter as much as the number. A man with a level of 280 ng/dL and no symptoms is not necessarily a treatment candidate. A man with a level of 350 ng/dL and clear symptoms may warrant a closer look.
Reference ranges also vary by lab. What one laboratory calls low, another might call borderline. The Endocrine Society and the American Urological Association have both published guidance, and while they broadly agree, they are not identical.
Free testosterone — the unbound fraction — is sometimes measured when total testosterone is borderline. This is more common in men with obesity or older age, where a higher proportion of testosterone is bound to a protein called sex hormone-binding globulin. Whether free testosterone testing improves outcomes is still debated.
Why Some Doctors Say No
A doctor declining to prescribe testosterone is not being difficult. There are real reasons.
Testosterone therapy suppresses the body’s own production. The pituitary stops signaling the testicles to make testosterone, and sperm production often falls. For men who want to father children, this is a serious consideration, and it is not always reversible on the timeline people hope for.
Testosterone also raises red blood cell counts. In some men this reaches a level called erythrocytosis, which thickens the blood and raises concern about clotting. This is why hematocrit monitoring is part of routine follow-up.
Prostate effects are another area of caution. Testosterone does not appear to cause prostate cancer, but it can fuel the growth of existing prostate cancer. Screening and monitoring are part of responsible prescribing.
Finally, the evidence on benefits is narrower than marketing suggests. Testosterone therapy is well established for men with clearly low levels caused by known medical conditions. For men with borderline levels and vague symptoms, the picture is less clear. Some trials show modest improvement in sexual function and mood. Others show little benefit for energy or physical function. The FDA has required label changes reflecting this narrower evidence base.
What About Telehealth and Men’s Health Clinics?
Telehealth has made testosterone easier to get. That is not automatically bad — access matters — but the quality varies widely.
Some telehealth practices follow the same guidelines as academic medical centers: morning labs, confirmatory testing, documented symptoms, ongoing monitoring. Others operate on a model where a brief questionnaire leads to a prescription and a monthly shipment.
The concern is not ideological. It is clinical. Without proper baseline labs, you cannot tell whether you actually need treatment. Without follow-up, you cannot catch rising hematocrit or other problems. And without a real diagnosis, you may be treating a symptom that has a different cause entirely.
If you use a telehealth service, ask directly: Will you order morning labs? Will you repeat a low result before prescribing? Who monitors my blood counts? A legitimate practice will have clear answers.
How to Find the Right Doctor
Start with your primary care doctor. Bring a specific list of symptoms and how long you have had them. Ask for a morning total testosterone test.
If your level is clearly low, or if your primary care doctor is not comfortable managing treatment, ask for a referral to an endocrinologist or a urologist with men’s health experience. Both specialties are appropriate. The right choice often depends on what else is going on — pituitary issues point toward endocrinology, fertility concerns point toward urology.
Look for a clinician who:
- Orders morning labs and confirms low results before prescribing
- Explains the diagnosis, not just the prescription
- Schedules follow-up to check hematocrit and testosterone levels
- Discusses fertility implications before you start
- Is willing to say no if treatment is not clearly indicated
That last point matters most. A doctor who never declines is not necessarily helping you.
Frequently Asked Questions
Can my regular doctor prescribe testosterone?
Yes, primary care physicians can prescribe testosterone and many do. If your case is complicated or your doctor is not comfortable managing it, they will refer you to an endocrinologist or urologist.
What type of doctor specializes in low testosterone?
Endocrinologists and urologists are the two specialties that most often manage low testosterone. Endocrinologists focus on the hormonal system, while urologists often run men’s health clinics and handle fertility-related concerns.
Do I need a referral to see a specialist for testosterone?
It depends on your insurance plan. Some plans require a referral from your primary care doctor before you can see an endocrinologist or urologist, while others allow you to book directly.
Can a telehealth doctor prescribe testosterone?
Yes, telehealth providers can legally prescribe testosterone in most states. Quality varies, so ask whether they order morning labs, confirm low results, and monitor your blood counts over time.
