Getting prescribed testosterone requires a blood test confirming your levels are below 300 ng/dL, along with symptoms that match low testosterone. You can start the process with your primary care doctor, though you may end up seeing a specialist. The path from first appointment to prescription typically involves two or more visits spread over a few weeks.
What Doctors Look For
A testosterone prescription isn’t based on symptoms alone or a blood test alone. You need both. The American Urological Association sets the diagnostic threshold at a total testosterone level below 300 ng/dL, and your provider also needs to document symptoms consistent with that low level.
The symptoms that support a diagnosis fall into several categories. Sexual symptoms include low libido, erectile difficulties, and reduced morning erections. Physical symptoms include fatigue, loss of muscle mass, increased body fat, and decreased energy. Some men also experience cognitive changes like difficulty concentrating or mood shifts such as irritability and low motivation. Your doctor will ask about all of these, often using a structured questionnaire to screen you.
One complication worth knowing: depression, sleep disorders, and chronic fatigue can mimic low testosterone almost perfectly. If your doctor wants to rule those out before moving forward, that’s not a brush-off. Those conditions can even cause temporarily low testosterone readings, so distinguishing the root cause matters for getting treatment that actually works.
The Blood Test Process
Your doctor will order a total testosterone blood draw, and timing matters. Testosterone levels peak in the morning and drop throughout the day, so most providers require the draw to happen early, typically before 10 a.m. If you go in the afternoon, your result could read artificially low.
A single low reading isn’t enough. Guidelines call for at least two separate morning blood draws on different days to confirm the result, because testosterone fluctuates naturally. If both come back below 300 ng/dL and you have matching symptoms, you meet the diagnostic criteria for testosterone deficiency.
Your provider will likely order additional labs at the same time: a complete blood count to check your red blood cell levels, thyroid function, and possibly pituitary hormones to determine whether the problem originates in your brain’s signaling or in the testes themselves. This distinction can affect which treatment makes sense.
Which Doctor to See
You have several options, and the right choice depends partly on your situation and partly on who takes your insurance.
Your primary care doctor can diagnose low testosterone and write a prescription. Many men get started this way, particularly if their case is straightforward. The downside is that some PCPs are less experienced with optimizing dosing or monitoring the nuances of therapy, and insurance coverage for certain formulations can vary. One common pattern: a PCP prescribes a topical gel because that’s what insurance approves most readily.
Endocrinologists specialize in hormonal conditions and are often considered the go-to specialists for testosterone replacement. They’re more likely to look at free testosterone (the portion your body can actually use) in addition to total testosterone, and they tend to be more comfortable adjusting treatment over time. The trade-off is longer wait times for appointments and the potential need for a referral.
Urologists also manage testosterone therapy, though their level of interest varies. Some urologists focus primarily on surgical issues and may not prioritize hormone management. If you’re choosing a urologist specifically for testosterone, look for one who lists hormone therapy or hypogonadism as a focus area.
Men’s health clinics and specialty hormone clinics are another route. These clinics often streamline the process and may offer formulations like compounded pellets that mainstream practices don’t carry. They can be more expensive out of pocket, since not all accept insurance.
What Can Disqualify You
Certain medical conditions can prevent a doctor from prescribing testosterone, at least until those conditions are addressed. Men actively trying to conceive are generally steered away from testosterone therapy because it suppresses sperm production, sometimes severely. If fertility is a concern, your doctor may suggest alternatives that stimulate your body’s own testosterone production instead.
Untreated severe sleep apnea, significantly elevated red blood cell counts (a hematocrit above 54%), and certain active cancers are also reasons a provider may hold off. A history of blood clots or uncontrolled heart failure can complicate the decision as well. None of these are necessarily permanent barriers, but they require careful evaluation before treatment starts.
Delivery Methods
If you qualify, your doctor will discuss several ways to take testosterone. Each has trade-offs around convenience, cost, and how steady your levels stay.
- Topical gels: Applied daily to the shoulders, upper arms, or abdomen. They maintain relatively steady levels but require care to avoid skin-to-skin transfer to partners or children. Gels are one of the most commonly prescribed forms and often the easiest to get covered by insurance.
- Injections: Typically given every one to two weeks, either at a clinic or self-administered at home. Injections tend to produce more noticeable peaks and valleys in testosterone levels compared to daily gels, but many men prefer the convenience of a weekly routine over a daily application.
- Patches: Worn on the skin and changed daily. They provide steady absorption but can cause skin irritation at the application site.
- Pellets: Small implants placed under the skin every three to four months during a brief office procedure. Pellets offer the most hands-off experience but require a minor procedure each time and don’t allow easy dose adjustments.
- Nasal gel: Applied inside each nostril three times daily. It avoids the transfer risk of topical gels but the frequent dosing schedule can be inconvenient.
Your doctor will likely start with a moderate dose and adjust based on follow-up blood work. The goal is to bring your levels into the normal range without overshooting.
What Happens After You Start
Testosterone is classified as a Schedule III controlled substance by the DEA, which means prescriptions are regulated more tightly than standard medications. Your pharmacy will require identification at pickup, and your doctor must write a new prescription or authorize refills within specific limits.
Follow-up blood work is a permanent part of treatment. The AUA recommends checking your hemoglobin and hematocrit every 6 to 12 months to make sure your red blood cell count doesn’t climb too high, since testosterone stimulates red blood cell production. A hematocrit above 54% requires intervention, usually a dose reduction or temporary pause. Your doctor may also monitor PSA levels as part of routine prostate screening, and estradiol if you develop breast tenderness or swelling (a sign your body is converting excess testosterone to estrogen).
Most men notice changes gradually. Energy and mood improvements often come within the first few weeks, while changes in body composition and sexual function can take three to six months to fully develop. Your first follow-up appointment is typically four to six weeks after starting, with a blood draw to check where your levels have landed and whether the dose needs adjusting.
How to Prepare for Your First Appointment
Walk in with specifics. Write down which symptoms you’re experiencing, how long you’ve had them, and how they affect your daily life. If you’ve had blood work done recently for any reason, bring those results. Mention any medications you’re taking, since opioids, certain antidepressants, and corticosteroids can all suppress testosterone levels.
Be direct about what you’re looking for. Doctors respond well to patients who describe symptoms clearly rather than asking for a specific medication. Saying “I’ve had persistent fatigue, low libido, and difficulty building muscle for the past year” gives your doctor a concrete clinical picture to work with. From there, they’ll order the labs, and if the numbers confirm what your symptoms suggest, the prescription follows naturally.