Can hematochromatosis cause cirrohsis of the liver?

Absolutely. Of all the diseases that will kill you if untreated, classic hemochromatosis (which claimed the life of my grandfather and uncle) is the easiest to manage effectively. Cirrhosis is only part of the trouble. If you've been diagnosed, run (don't walk) to get your phlebotomies -- you'll be delighted with how much better you feel.