increased number of mature and fertilized oocytes might be due to an increased number of retrieved oocytes with increasing estradiol value, and this does not reflect on oocytes or embryo quality. To reflect the role of estradiol better, we correlated the ratio of e2mature follicle and e2oocytes with cycle parameter outcomes. ozdegirmenci et al found that e2fol was associated with egg number, number of mature eggs, and number of fertilized eggs, but not associated with clinical pregnancy rate. In a study of 342 ivf cycles, mittal et al 7 found that e2fol correlated positively with the number of mature eggs and the number of fertilized eggs, regardless of cleavage rate. Objective to determine the relationship of follicle numbers and estradiol (e2) levels to multiple implantations in human menopausal gonadotropin (hmg) and clomiphene citrate (cc) cycles. Patient(s) women who underwent 3608 cycles of husband or donor intrauterine insemination (iui). Relationship between a low ratio of serum estradiol to follicle number and fertility treatment outcomes. Found that e2fol was associated with egg number, number of mature eggs, and number of fertilized eggs, but not associated with clinical pregnancy rate. For me i was taking gonal f alternating doses of 75iu and 37. When i went in for an ultrasound they also saw many little follicles - around 10 on each side and none of them measuring above 10. They had me get blood work and my estradiol level was 96 (i read that this level should be around 200-300 per mature follicle). Whats a good number of eggs retrieved? Egg retrieval, medically known as ovum pick-up or follicle puncture, is a surgical procedure whereby mature eggs are harvested from the ovary. The purpose of this surgical procedure is to collect the eggs when they are at metaphase ii, considered the optimal state of maturation for retrieval and fertilization. Therefore the largest follicle on a given day may not be the same one that is the largest two days later, and it may not even be the one that is most mature. Furthermore, correlation of e2 and follicle size is poor and the maximum preovulatory diameter can range from 19 to 24 mm. You might never have heard of ovarian follicles before, nor expected them to be of such importance to you and your fertility. However, follicles are perhaps one of the most intrinsic parts of a womans reproductive system, and how many follicles you have is often a straightforward way of determining how likely you could be to conceive naturally or which assisted fertility treatment such as. The follicular phase, also known as the proliferative phase, is the phase of the estrous cycle (or, in humans and great apes, the menstrual cycle) during which follicles in the ovary mature. The main hormones controlling this stage are follicle-stimulating hormone and gonadotropin-releasing hormone. Ivf is all about the eggs and one important indicator of your cycle is follicle size. Follicle size indicates how your eggs are developing and when they will be mature enough for retrieval. Follicles grow approximately 2mm a day on average and produce increasing levels of estradiol.