12 doctors weighed in:

What are the odds of my child having schizophrenia if I have 2 cousins who have the illness?

12 doctors weighed in
8 doctors agree

In brief: Small

Less than 25%( very approximately).

In brief: Small

Less than 25%( very approximately).
Dr. Margarita Krasnova
Dr. Margarita Krasnova
Thank
1 comment
Dr. Glen Elliott
*Much* less than 25%. Lifetime prevalence of schizophrenia is 0.3-0.7%. I would say less than 5%. Here's a good site: www.schizophrenia.com/research/hereditygen.htm
Dr. Glen Elliott
Pediatrics - Psychiatry
4 doctors agree

In brief: Probably average

Genetic influences fall of rapidly with the distance of the relationship.
Your cousins are fairly distant genetically from your child, so there probably would be, at most, a very slight increase from the general population risk.

In brief: Probably average

Genetic influences fall of rapidly with the distance of the relationship.
Your cousins are fairly distant genetically from your child, so there probably would be, at most, a very slight increase from the general population risk.
Dr. Glen Elliott
Dr. Glen Elliott
Thank
1 comment
Dr. Glen Elliott
I did a bit of additional research based on Dr. Krasnova's answer. A nice summary of risk is available at www.schizophrenia.com/research/hereditygen.htm
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