Sextuplets

Ultrasound is used to determine the number of fetuses in a multiple pregnancy.

This ultrasound image shows an early pregnancy showing 6 gestation sacs indicating a sextuplet pregnancy.

Parts of 2 fetuses are shown in gestation sacs labelled 1 and 4. The crown-rump length of the fetus in gestation sac 4 is measured.

A sextuplet pregnancy is very rare.