Hematocrit is the percentage of blood volume occupied by red blood cells. As hematocrit rises, blood viscosity (resistance to flow) increases non-linearly — at 50% hematocrit, blood is approximately 2× more viscous than plasma; at 60%, it is 4× more viscous. This relationship makes elevated hematocrit on TRT a genuine thrombotic risk, not merely a lab value concern.
GearCheck connects glossary concepts to your actual bloodwork — showing exactly where your values sit and what they mean in the context of your protocol.
Analyze My Bloodwork →GearCheck provides blood marker analysis and harm reduction education. Information is for educational purposes only and does not constitute medical advice. Always consult a healthcare professional.