Jewish law not only permits, but in some circumstances requires abortion. Where the mother's life is in jeopardy because of the unborn child, abortion is mandatory.

An unborn child has the status of "potential human life" until its head has emerged from the mother. Potential human life is valuable, and is not to be terminated casually, but it does not have as much value as a life in existence. The Talmud makes no bones about this: it says quite bluntly that if the fetus threatens the life of the mother, you cut it up within her body and remove it limb by limb if necessary, because its life is not as valuable as hers. But once the head has emerged, you cannot take its life to save the mother's, because you cannot choose between one human life and another.