Now, one problem is thrombosis. So thrombosis is basically the process by which we form the blood clots. And if these blood clots are formed excessively they can basically escape into the cardiovascular system and eventually they can aggregate at the wrong place and that can block the flow of blood. And this is known as an embolism. So an embolism is the process by which these blood clots aggregate abnormally and they block that flow of blood to some area, some tissue or some organ of our body. And that can lead to many problems.