is it true that there are no possible known cause of polyhydrominious in pregenency . in my early pregnancy I had poly, though mybsugar level was controlled and there was no other symptoms cause found, if its true is there chances of occurring in second pregenecy also, I went to preterm labour due to that. what should I can do to prevent it in future pregenecy and what are it possible causes .now my babybis small so m not planning second child but in future if I take decision what treatment I should take to prevent it. I came to know that high level of fluid develops once have no treatment in India , draining of fluid is an option but its notbthere in India. please advice or else I will drop plan of second pregenecy .