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Do TRT Right

TRT

Also called Testosterone replacement therapy, Testosterone therapy, Testosterone shots, Starting TRT

3 min plan50 min with every studyUpdated Sep 27, 2026

Who it's forA man with the symptoms and a low testosterone result, deciding with his doctor whether to start therapy.

When to see a doctor
  • You want children soon: therapy shuts sperm production down, so this comes before any prescription.
  • Your hematocrit is already high before you start.
  • Sleep apnea that is severe and not yet treated.
  • A PSA above 4, above 3 at higher prostate risk, or a lump found on a prostate exam: a urologist first.
  • A heart attack or stroke in the last 6 months, uncontrolled heart failure, or a clotting disorder.
  • Very low testosterone, under 150 ng/dL, a prolactin that stays high, or new headaches or vision problems: a pituitary scan first.

I am not a doctor. This is not medical advice. This is self-education. Every dose on this page is the dose a trial used, quoted from the trial; it is not a prescription. Talk to a physician who has your bloodwork before you change a medication and before anything in the With a doctor group.