Yes, partly: It has a genetic component, and seems to run in families. The inheritance is not completely or even well understood: if you have a 1st degree female relative with it, you are more likely to have it, but a woman could have it and give it to 2-out-of-3 or 1-out-of-3 daughters. And so on. Hope this helps.
Answered 12/18/2014
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