09/24/2026
If you’re on testosterone therapy, you’ve probably heard your provider talk about hematocrit. But why does it matter?
Testosterone can stimulate red blood cell production, and in some men this can cause erythrocytosis, meaning the concentration of red blood cells becomes elevated.
That’s why responsible testosterone therapy includes regular monitoring not simply checking your testosterone level.
Your provider may monitor your hemoglobin and hematocrit and determine whether your treatment needs to be adjusted based on your results and individual risk factors.
💪 Optimizing hormones safely means paying attention to the whole picture.