This book provides up-to-date research on the prevalence, risk factors and outcomes of recurrent pregnancy loss. Chapter One discusses immunopathogenetic aspects of recurrent miscarriages with infectious genesis. Chapter Two examines abnormal endometrial decidualisation in endocrine disorders associated with early recurrent pregnancy loss. Chapter Three focuses on the significance of the determination of antibodies to different phospholipids and some genetic factors for thrombophilia in patients with systemic lupus erythematosus. Chapter Four explains immunorehabilitation in miscarriages of pregnancies.