The patient underwent blood tests for thrombophilic screening, namely, blood cell count, Factor V Leiden and prothrombin gene mutation, protein C, S, antithrombin III, homocysteinemia, antiphospholipid antibodies, lupus anticoagulant, angiotensin-converting enzyme (ACE), and oncomarkers (CA-19.9, CA125, CEA, NSE, and alpha-fetoprotein), which were found to be within the normal limits. The gene discussed is F5; the disease is hyperhomocysteinemia.