Some people are born with an increased tendency to form blood clots,
which increases their risk for developing blood clots in the legs (deep vein thrombosis) and in the lungs (pulmonary embolism). This tendency is due to inherited blood-clotting
irregularities, which are generally related to:
Many of these blood-clotting irregularities can be identified with
special tests. If your doctor suspects that you may have an
inherited blood-clotting irregularity, discuss whether testing is
Other Works Consulted
Lipe B, Ornstein DL (2011). Deficiencies of natural anticoagulants, protein C, protein S, and antithrombin. Circulation, 124(14): e365–e368.
December 28, 2011
E. Gregory Thompson, MD - Internal Medicine
& Jeffrey S. Ginsberg, MD - Hematology
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