Natural Cycle IVF

Natural cycle IVF is a treatment cycle wherein the ovaries are not stimulated with medications to produce a large number of eggs, as is the norm with all IVF cycles.  This is suitable for women who cannot have medications for medical reasons or otherwise or have previously over responded to medications and had therefore developed a complication of IVF called ovarian hyperstimulation syndrome (OHSS).   

During OHSS, ovaries enlarge and seep fluid in the abdomen causing abdominal pain, bloating, a feeling of sickness, vomiting and loose stools.  Rarely, OHSS can be further complicated with medical problems such as collection of fluid in the abdomen and lungs which requires hospitalisation and intensive medical management.  It may also be suitable for women who do not respond well to medications. 

The success rates of a natural cycle IVF depends on numerous factors such as the woman’s age, hormone concentrations, ability to make eggs during a cycle and presence of other medical complications.   Natural cycle IVF although does not have the usual high success rates as seen in traditional IVF since there is no choice of embryos to be replaced, it is a safer alternative for women who are not suitable for traditional IVF treatment. 

The other advantages of natural cycle IVF:  are that you do not have to inject as many medications as in Stimulated IVF, it is therefore less emotionally stressful. It is also less expensive and takes minimal time away from other life commitments.