A rare presentation of homozygous factor X deficiency in a pregnant patient: A case report and review of the literature.

Dear Editor, Congenital factor X (FX) deficiency is an extremely rare, autosomal recessive inherited condition with an estimated incidence of 1:1 000 000 with an eightfold to 10‐fold increase in frequency in populations with consanguineous marriages.1 It is a heterogeneous bleeding disorder that, dependent on the residual FX level, can be asymptomatic or present with grade I (minor provoked), grade II (minor spontaneous; eg, epistaxis) to grade III (severe spontaneous) bleeding (eg, haematomas, haemarthrosis, central nervous, umbilical cord and gastrointestinal bleeding). [...