Intrauterine fetal demise (IUFD) is fetal death that occurs after 20 weeks gestation but before birth. If the gestational age is unknown at the time of death, a fetus that weighs ≥350 g is considered an IUFD. In 2005, IUFD occurred at a rate of 6.22 per 1000 pregnancies, which amounted to 25,894 deaths.