Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 9/5/2025

Recurrent Pregnancy Loss Causes and Factors

Genetic and Endocrine Factors

  • Some patients with recurrent complete hydatidiform moles have an autosomal recessive condition called familial recurrent hydatidiform mole (FRHM) with mutations in NLRP7 and KHDC3L genes 1
  • Diminished ovarian reserve may be associated with increased miscarriage risk, particularly with severely reduced AMH levels (2)

Thrombophilias

  • Certain thrombophilias may increase risk of pregnancy loss 3
  • Women with homozygous factor V Leiden or prothrombin 20210A mutation with positive family history for VTE should receive antepartum prophylaxis with prophylactic or intermediate-dose LMWH 3