About twenty-five percent of all women will have a spontaneous abortion during their lives.

The risk of spontaneous abortion is increased about 1.7 fold.

A statement said there was a spontaneous abortion and the life support machine had now been turned off.

There are two main causes for spontaneous abortion in animals.

Both spontaneous and induced abortions have some risk for the woman.

There can be emotional problems for the woman after a spontaneous or induced abortion.

Consider, he said, that at least 20 percent of pregnancies are known to end in spontaneous abortion.

This can result in spontaneous abortion or major developmental disorders.

No one knows why this occurs, she said, and such pregnancies usually end in spontaneous abortion.

People (who are not doctors) sometimes call a spontaneous abortion a miscarriage.