Dear sir Thank you very much. I don't have knowlede for medication, if you teach me that i could find out what is wrong in my thought. 1. When i push wood golf in the ground, golf tee broken into half and golf tee which stuck in the ground made my finger cut. While cutting, my finger skin and vein got cut altogether and i could saw the very little vein in finger and blood also came out fron vein. Actually I dont know the vein circulation, so if wood particle enter while cut the vein in finger I thought It could reach the heart. But what I still confused is when i see the finger vein, there are alot of beanch and curve in the finger vein. so if 3mm particle managed to get into finger vein it could be stucked at the point of finger tip. So pls. Teach me that what is wrong in my thought.. 2. Second assumption is 0.7mm sharp particle pierce the skin and reach the vein and prick one side of vein and get into and push other side of vein and vein diameter is somewhat get larger because particle push the other side and not directly pierce and wood particle broken and broken part flow thru the vein and other part cut the other side of vein.. Sorry to bother you again.

Dear sir. Thank you very much. What I misunderstand is if particle is small and stuck in half, Echo could not find it out. But I thought that eventhough it is small (3-4mm) it is foreign body, so there is fibrin around particle or somthing else would be covered and stucking part or embedded part could be swellowed, so it is impossible to find out the stucking place. If it is still stuck in the layer of endocardium almost 1yr, and also it is moving very little bit into inside of endocardium, echo could surly find out... am I right?

Thank you very much. Now I almost understand that my logic has some irrational point. First I thought that blood could push particle more and more into endocardium. But it need more power to push particle into deeper inside of endocardium and myocardium. Same push power could not push particle into more. So in normal if particle stuck in the endicardium, it could not be moved into.. so if not particle pierce the endocardium and touch myocardium, it is impossible to push particle little by little. Below is last query for upper logic. When particle stuck in the endocardium, our cells try to cover the around the particle for holding or not to move... What i want to know is... Because of the continuous push by blood flow, our cell lose the tight ness and finally die and allow the blood flow to push particle into deeper endocardium or more. If it is not possible. I am ok. And what is going to happen if particle continuously attack cell and cell die and make hole in endocardium..