Will TRT make my blood too thick or increase my hematocrit levels?
I've heard that TRT can cause your blood to thicken or increase your red blood cell count. Is this dangerous, and how do I manage it while on therapy?
The short answer
Elevated red blood cell counts (hematocrit) are a common side effect of TRT because testosterone stimulates the bone marrow to produce more cells. While this can improve oxygen delivery and cardio performance, excessively thick blood may increase cardiovascular strain if not monitored. At HeydayMD, our clinical team prioritizes regular blood work to track your hematocrit and hemoglobin levels, ensuring your protocol remains safe and effective for long-term health.
Every body is different. A licensed provider can look at your own labs and symptoms.
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