Cloning might provide more reasons as to why miscarriages occur. This can lead to a treatment to prevent spontaneous abortions.
Cloning experiments add to the understanding of genetics and might lead to limitless supply of organs. A technique for terminating cancer might also be discovered.
Cloning can also be used for testing defects in an ovum. The ovum would be cloned and tested for defects. If all shows well, then the original ovum would be free of defects as well.
Damage to nerve tissue could also be treated by using stem cells. Due to the large numbers of cells required however, human embryo cloning would be required.
Cloning would also allow women to have a set of identical twins instead of going through two pregnancies.