What should be the size of follicle to get pregnant?
Before ovulation occurs, the average diameter of the dominant follicle is 22 to 24 mm (range 18-36 mm).
Empty Follicle Syndrome
Empty Follicle Syndrome – In a very small percentage of cases, it can be produce a called empty follicle syndrome. In this case, it would not be egg retrieval after ovarian stimulation in IVF treatment in patients with adequate growth follicles and estradiol levels (a hormone produced by cells lining the follicle wall). Its exact cause is unknown. Different situations have been considered as an error in the administration of hCG, abnormal response to treatment, impaired follicular mellowing. No clear predisposing factors that could help to estimate or establish their possible occurrence but has been observed more frequently in women with a history of primary infertility (women who have never been pregnant) and having good follicle count. It is a rare event (<7%), but its incidence increases with age. The patient that this does not imply this, in most cases, a fertility problem. In fact, most have a normal follicular mellowing and number of egg.