Can hemophilia be detected before birth?

Some families with a history of hemophilia may want to request prenatal testing, or testing before birth. This testing can be done early in pregnancy, allowing your family to make informed decisions and preparations. read more

Those cells can then be tested for the mutation and thus detect hemophilia before birth. It is important to note that this can only be done after the fetus is 13 weeks along or older. Between weeks 10 and 12, a procedure called chorionic villus sampling can also be preformed. read more

Hemophilia C is very rare, and much more mild than hemophilia A or B; it involves factor XI. Hemophilia A affects between one in 5,000 to one in 10,000 males in most populations. One recent study estimated the prevalence of hemophilia was 13.4 cases per 100,000 U.S. males (10.5 hemophilia A and 2.9 hemophilia B). read more