Two forms of false pregnancy occur. In one of these, after the usual symptoms of abortion, and with considerable pain and hemorrhage, a fleshy body of varying size is expelled, which may be shown by a close examination to be an undeveloped fetus. This form of false pregnancy is attended by little danger.

In the other form, the symptoms of pregnancy continue up to the fourth or fifth month, though no fetal movements are ever felt. The abdominal walls are generally extended more than at the same time in true pregnancy. After a time, a large quantity of bloody serum is discharged, along with severe hemorrhage, the escaping fluid containing small bladder-like bodies resembling grapes. This is known as the hydatidi-form. This form of false pregnancy is by no means free from danger.