Very often, in IVF programs, medication for ovarian stimulation is not administered, but we proceed to natural cycles. In such cases, we observe the natural development of the leading follicle as happens in most menstrual cycles. The observation is based on ultrasound scans and hormonal testing. When the leading follicle reaches the ovulation size and hormonal assessment shows us the onset of ovulation, the oocyte retrieval follows and in-vitro fertilization process comes next.
When do we do IVF in a natural cycle?
- In women who do not wish or are not allowed to be administered medication for ovarian stimulation
- In women with secondary infertility (that is they have already had a child in the past) and do not want the development and creation of many embryos
- In a history of multiple failed IVF attempts or abortions
- In women of advanced age or with a history of development of poor quality embryos in previous attempts
What are the advantages of a natural cycle IVF?
Continuously increasing success rates!!
- The individualization of each case is the key of success in a natural cycle
- We can achieve “valuable” pregnancies, especially in women aged over 40 years old.
- Besides it is a more “natural” alternative solution to an IVF cycle since it does not involve medication. There is no possibility of side effects such as Ovarian Hyperstimulation Syndrome (OHSS)
- Reduces the possibilities of multiple pregnancies.
- The process can be repeated in continuous cycles, without the waiting period that is often required between medically stimulated IVF cycles.