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Does Hypersplenism Cause Thrombocytopenia? Insights from William Aird
Aug 21, 2025, 15:08

Does Hypersplenism Cause Thrombocytopenia? Insights from William Aird

William Aird, Professor of Medicine at Harvard Medical School, shared a post on X:

“DOES HYPERSPLENISM CAUSE THROMBOCYTOPENIA?

YES!

Platelet mass (circulating + splenic) regulates TPO. In hypersplenism, sequestered platelets still count toward mass → no ↑TPO drive, but fewer platelets in circulation due to redistribution.”

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