A member asked:

How far back should i trace my families medical history to know if i'm predisposed to common hereditary disorders?

A doctor has provided 1 answer

Immediate family: Autosomal dominants (polycystic kidneys, lynch's, brca, some of the other tumor syndromes) affect mom or dad; if an uncle / aunt or grandparent has something suggestive, maybe you have it -- and an extra screening need. If a sib has an autosomal recessive / x-linked problem, you probably already know about you. Beyond this -- stop obsessing. You've got your genes already. Live your life. Cheers.

Answered 12/10/2013

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