<s>[INST] Hi, My name is Debra. For the past fifteen years I have required having central lines and most recent ports for years. Having them I have aquired many infections, requiring the pull of one port by replacing another one. This has just happened. My vascular surgeon was doing an ultra-sound and found a recent clot one side and two one the other. I can never have another port. This was very concerning to me. First, What am I going to do and then, What are these clots made of and are they harmful to my health? [/INST] GreetingsClot formation or thrombosis is a known complication of catheters and ports. If you have developed clot then the port has to be removed and you will require anti coagulation therapy for atleast 6 months. If anticoagulation not taken, then only it can be harmful.regards </s>