Hemochromatosis – iron physiology and pathophysiology

Learn how hemochromatosis (iron overload) develops, how to diagnose it, and effective treatments like phlebotomy and iron chelation. This clear, concise video explains iron metabolism, the role of hepcidin and ferroportin, and genetic (HFE) and secondary causes of hemochromatosis so you can recognize risk factors and symptoms early.

You’ll learn where iron is stored and transported—ferritin, transferrin, hemoglobin—and how absorption in the duodenum via DMT1 and export through ferroportin is normally regulated. The video breaks down how reduced hepcidin (from HFE mutations, liver disease, or ineffective erythropoiesis) leads to excess serum iron, transferrin saturation, and toxic non–transferrin-bound iron deposition. Understand the classic clinical triad—cirrhosis, diabetes, and skin pigmentation—and the wide-ranging complications: liver cirrhosis and hepatocellular carcinoma, cardiomyopathy and arrhythmias, arthritis, endocrine dysfunction (hypogonadism, secondary hypothyroidism), pancreatic damage causing diabetes, and hypogonadism.

Diagnostic cues covered include elevated serum ferritin, MRI evidence of hepatic or cardiac iron, tissue iron staining, and therapeutic phlebotomy response. The video contrasts management strategies—regular phlebotomy for most patients versus iron-chelating agents when anemia or transfusional overload precludes blood removal—while highlighting prevention and monitoring considerations.

Watch to gain a practical, clinically focused understanding of hemochromatosis mechanisms, diagnosis, and treatment so you can spot warning signs earlier and discuss targeted care options confidently.