I'm the only BP'er, for realz.


My parents are / were both neurotypical (my dad has since passed) and out of 6 siblings, I'm it.


So yes, it is entirely possible, especially when DRs are still so much in the dark with BP, they don't actually know what causes it or exactly how it works. It's all theories and hypothesis at this point. So while there is a genetic component, that's not to say its completely hereditary.