 The risk for potentially life-threatening blood clots is 35 times greater among women with a genetic clotting disorder who also use an estrogen-based contraceptive. That's why the Rowan Foundation says that genetic testing can help women who are considering their options be better informed and make personalized decisions. To learn how genetic testing can help reduce the incidence of clot-related deaths linked to hormonal birth control, visit alexrowanfoundation.org.