PremiumOpinionOpinion byDr Mikkael SekeresWashington Post·5 Aug, 2026 07:00 PM7 mins to readMikkael A. Sekeres, MD, MS, is the chief of the division of haematology and professor of medicine at the Sylvester Comprehensive Cancer Center, University of Miami."Cancer is complicated. The cards we’re dealt at birth play an important role, but risk is influenced by many factors." Photo / 123RFWhen multiple family members are diagnosed with cancer, it’s normal to wonder what that means for your risk. Dr Mikkael A. Sekeres explains.How much does family history matter when it comes to cancer risk? Am I definitely going to get it if it runs in my family?

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