Who this guide is for
This guide is for men who get testosterone therapy from a men’s health clinic, a urologist or an endocrinologist, and also see a primary care doctor for everything else. It is just as useful if you are about to start TRT and want to set things up well from the beginning.
Two clinicians looking after one body is a strength when they share information and a risk when they do not. Testosterone moves several numbers that primary care doctors watch for other reasons, so the aim here is simple: one shared set of results, no repeated blood draws, and a clear answer to “who handles this?”
What to share with your primary care doctor
Start with a one-page summary you can hand over or upload to the patient portal. Keep it current.
| Share this | Why your doctor needs it |
|---|---|
| The two morning testosterone results behind your diagnosis | Shows treatment rests on a confirmed diagnosis |
| Product, dose, route and schedule | Explains changes in blood counts, blood pressure and other labs |
| Hematocrit results over time | Testosterone can raise red cell levels; the trend matters more than one value |
| PSA results over time | A rising trend is what prompts a prostate review |
| Blood pressure readings from TRT visits | Testosterone labels now carry a blood pressure warning |
| Any other medicines added for TRT side effects | Avoids duplicate or interacting treatments |
| The name and phone number of your TRT clinician | Lets the two offices talk directly when needed |
A hematocrit test measures the share of your blood made up of red cells, and the AUA guideline says that on testosterone, a hematocrit of 54% or higher warrants intervention. The FDA’s 2025 class-wide labeling change added a blood pressure warning to testosterone products that lacked one. Both of those are numbers your primary care doctor may already be tracking.
A short note you can send
Many men find the first conversation easier in writing. A portal message along these lines covers the essentials:
I have started testosterone therapy with a men’s health clinic for low testosterone confirmed on two morning tests. I take [product and dose] on [schedule]. My most recent hematocrit was [value] and my PSA was [value], drawn on [date]. I will forward each new result. Please let me know if you would like any test added to my next TRT panel instead of a separate draw, and who you would like to handle a high hematocrit or a rising PSA.
Attach the lab reports themselves rather than retyping numbers, and keep a copy of what you sent. If your doctor replies with questions you cannot answer, pass them to your TRT clinician; a direct call between the two offices often settles things in minutes.
How to avoid duplicate tests
Repeat blood draws cost time and money and rarely add anything. These steps prevent most of them.
- Send every TRT result to your primary care doctor as soon as you get it, through the portal, by email or as a printout at your next visit.
- Bring your latest TRT labs to your annual physical and ask your doctor to skip markers that were drawn recently, such as a complete blood count or PSA from the past few months.
- Line up the calendar. If your TRT panel falls near your physical, ask one office to draw the combined set and share it with the other.
- Keep one PSA history. PSA is read as a trend, so having every result in one place, with dates, matters more than who ordered it. MedlinePlus notes that ejaculation in the 24 hours before the test can raise PSA, so prepare the same way each time.
- Note draw timing for testosterone. A level taken at an unknown point in your injection cycle is hard to interpret. If your primary care doctor checks testosterone, tell them when your last dose was.
Our page on using blood work from your primary doctor explains which outside results a TRT clinic can usually accept.
Who handles which follow-ups
Agree on this list out loud, ideally at your next visit with each clinician, so nothing falls between two offices.
| Usually the TRT clinic | Usually the primary care doctor | Agree in advance |
|---|---|---|
| Testosterone levels and dose changes | Annual physical and vaccines | Who acts on a hematocrit of 54% or higher |
| Estradiol and TRT side effects | Cholesterol, blood sugar and diabetes care | Who refers you to urology if PSA rises |
| Hematocrit checks tied to your TRT schedule | Long-term blood pressure treatment | Who orders a sleep study if snoring or breathing pauses start |
| Fertility planning on treatment | Cancer screening such as colonoscopy | Who you call first for a new symptom |
On PSA specifically, the AUA guideline recommends measuring it before treatment in men over 40, then testing on treatment through shared decision-making that follows the usual screening guidance for your age. Our page on a rising PSA on TRT explains what happens next if the trend climbs.
Moments when both clinicians need to know
Some events should trigger a message to both offices, not just one.
- Surgery or a procedure. Your surgeon and both clinicians should know you take testosterone. Our page on stopping TRT before surgery covers the questions to ask.
- A new medicine, especially blood thinners, diabetes medicines or blood pressure medicines. Our page on TRT medication interactions lists the common ones.
- A blood pressure change. Higher readings after starting testosterone are worth a call; our article on whether TRT can raise blood pressure explains why.
- A hospital stay or emergency visit. Ask the hospital to send records to both offices.
- A plan to have children. Testosterone suppresses sperm production, so the plan may need to change.
- Donating blood. Some men on TRT donate to help manage hematocrit, and blood centers have their own rules about it; our page on donating blood on TRT explains them. Tell both clinicians so the numbers are read in context.
When to call the clinic, your doctor, or 911
Call the TRT clinic at 626-319-5261 for injection-site problems, breast tenderness or a lump, ankle swelling, acne flares, mood changes, or a hematocrit or PSA result you are not sure about.
Call your primary care doctor for problems unrelated to testosterone, or for blood pressure that stays above your usual range, and copy the TRT clinic in.
Call 911 for chest pain, sudden shortness of breath, a painful, swollen leg, or signs of a stroke such as one-sided weakness, facial droop or slurred speech. Tell the emergency team you take testosterone.
How Ultimate Male works with your primary care doctor
We see coordination as part of the job, not an extra. At our San Gabriel and Downey clinics, your results from on-site draws come back in 24 to 48 hours, and you can share every one of them with your primary care doctor. If you bring recent labs from your doctor, your PA-C or MD will tell you which ones can be used rather than redrawn. Our comparison of a men’s health clinic and primary care explains how the two roles fit together, and our page on whether your doctor will know about TRT covers privacy.
If you are starting testosterone therapy and want help setting up the handoff, mention it on the free 10-minute call, then book your visit and bring your doctor’s name and contact details.
