I've been doing research on ACs and the risks and I can't fully understand why there is a risk of a cerebral haemorrhage taking them. Your blood is in a state where it doesn't coagulate as well but why would that cause a haemorrhage? Nothing I've found seems to explain it. I'm left with the theory that one gets more excessive bleeding that may not be able to be stopped, but what causes the haemorrhage in the first place or does that happen totally independently of the AC and so you'd get it any way, even if you weren't on ACs? What I'm asking, is do you have to be already pre-disposed to getting a cerebral haemorrhage for the ACs to add additional problems?