A very common reason for ladies who want to freeze their eggs is to protect themselves from medical treatments that might affect their fertility and/or reproductive organs.
A lady who is undergoing treatment for cancer might opt for egg freezing in case treatments such as chemotherapy and/or radiotherapy negatively affect fertility.
Ladies who are at higher risk of getting cancer as a result of certain genetic conditions might also choose to freeze their eggs. This is because doctors may recommend removing the ovaries in order to reduce the risk of cancer developing. If ladies freeze their eggs before the ovaries are removed, they will still have the option of trying for pregnancy even after.