• Before going in for chemotherapy or radiation for cancer or surgery. Freezing healthy eggs before the treatment can give her a chance to have a baby once she has recovered.
• Thalassemia, sickle cell disease, lupus erythematosus, rheumatoid arthritis where bone marrow transplantation or suppressive therapy is given, fertility preservation is an option.
• Family history of early menopause: where there is increased risk of early menopause.
• Avoiding problems associated with older eggs. Elderly women have higher risk of birth defects, genetic diseases, miscarriages due to degradation of egg quality with increase age.
• Delay child bearing to pursue other goals- like you can’t take time off work, due to carrier demands, want to continue education.

In these cases fertility preservation is an excellent method.