Question by Lori M: cancers that are hereditary and how can that effect me?
Here is a list of Cancer in my family:
Pancreatic cancer: Mom’s dad
Rectal cancer: Female Cousin (mom’s sister’s daughter)
Intestinal cancer: Uncle (dad’s brother)
Kidney cancer: Mom’s mother
Bladder cancer: Aunt (dad’s sister)
Neck cancer: Aunt (mom’s sister)
What gene is more dominate, does it matter what side it comes from, does it skip a generation etc. or is it just a coincident that these family members just got cancer.
Answer by lo_mcg
Fewer than 10% of all cancer cases are hereditary.
Cancer diagnosed after the age of 50 is even less likely to be hereditary.
You don’t inherit a general tendency to get cancer; there’s no general ‘cancer gene’.
A sign that cancer MIGHT (only might) be hereditary within a family is when several members of the SAME SIDE of that family have had the SAME TYPE of cancer, especially if some developed it at a younger than usual age.
Several second degree relatives having had different types of cancer is coincidence and has no implications for you.
With one in three women and one in two men developing cancer over a lifetime of around 80 years, it would be a rare family that had no members who had had cancer, especially among its older members.
Two of my grandparents, both my parents, my aunt, my uncle and two cousins had cancer. No members of my immediate or extended family has ever been considered at increased risk of any of the cancers they had. Of my parents’ six children (all now aged from 50 – early 60s), I am the only one who has had cancer, and mine too was non-hereditary and unrelated to theirs
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