With improved survival rates among cancer patients, fertility preservation is now being recognized as an issue of great importance. There are currently several methods of fertility preservation available in female cancer patients and the options and techniques via assisted reproduction and cryopreservation are increasing, but some are still experimental and continues to be evaluated. The establ...

During the past 25 years, advances in reproductive medicine have led to the development of novel techniques that give cancer patients who are facing impending sterility an opportunity to bear biological offspring. However, the availability and expense of some fertility preservation methods have limited their universality and, therefore, patient access. By contrast, ovarian transposition prior t...

While ovarian tissue cryopreservation has commonly been equated with fertility preservation in cancer patients, there is a range of alternative options to preserve fertility. Based on the type and timing of chemotherapy, the type of cancer, the patient's age and the partner status, a different strategy of fertility preservation may be needed. If the patient has a partner or accepts donor sperm,...

In this paper we introduce the notions of fuzzy transposition hypergroupsand fuzzy regular relations and investigate their basic properties.We also study fuzzy quotient hypergroups of a fuzzy transposition hypergroup.

For cancers of reproductive system in women, fertility preservation is complex. Fertility is also affected by therapies, however prevention is possible. Radiotherapy affects gonads, uterus, and subsequent pregnancy outcomes in all ages. However, degree and damage depend on dose, irradiation field, and age at the time of exposure. Ovarian transposition is considered if ovarian involvement is unl...