Previous case reports or series show that anemia, obesity, smoking, cesarean section, epidural and spinal anesthesia during childbirth, pregnancy-induced hypertension, ovarian stimulation drugs, infections, Hyperhomocysteinemia (HHCY), antiphospholipid antibodies (aPL), and SLE may be closely associated with PCVT [7–12]. Here, FASLG is linked to systemic lupus erythematosus.