Superficial Blood Clots: Causes, Risks & Treatment - Expert Advice

Question
I have two superficial blood clots in my lower left leg.  I had this 3 yrs. ago and with heat a couple times a day and aspirin, they went away. That isn't working this time. My family physician has seen them and says - they never break loose and go elsewhere.  Can these form in other unknown places where one wouldn't know they were there and maybe have a stroke?  Do medications have anything to do with this?  I'm taking Lotrel, Ziac, Rythmol, Nitrofurantoin 50mg and 1 aspirin daily.  Any information will be appreciated.
                         Thank you.
                           Carolyn Mull  

Answer
Carolyn,

You are apparently suffering from superficial thrombophlebitis.  This differs from Deep Vein Thrombosis (DVT) in that the smaller veins are of no harm in regards to pulmonary embolism.  Not sure why you are more susceptable to this condition.  Many factors are involved, even trauma.  Do you smoke?  Are you on birth control pills or HRT?  The medications you listed I am not aware of any increased risk.  However, long term use of Nitrofurantoin is of concern with risk of pulmonary fibrosis.  Best to follow up with your PCP for further testing.  The clots formed in the arterial side which increase risk for stroke and AMI follow a different pathway, since what you suffer from is on the venous return side.

JP Saleeby, MD