Follicular Rupture
Follicular rupture is the moment a mature ovarian follicle opens and releases the egg. On ultrasound the follicle grows, then collapses. That collapse is the clearest sign the egg was released.
Rupture is the event a follicle maturation study is built to catch. Serial ultrasound in women with infertility placed rupture close to the Peak Day.1 A chart and a progesterone level show that an ovulatory event took place. Ultrasound shows the rupture most clearly, though it does not catch every one.
Rupture can also fail. In a luteinized unruptured follicle, the follicle fills and never opens. Cycles with an ovulation disorder carried less progesterone after ovulation.2
Cited in this entry
- Hilgers TW. Chapter 15: Scientific Foundations of the CrMS. The Medical and Surgical Practice of NaProTECHNOLOGY. 2004. /library/chapter-15-scientific-foundations-of-the-crms-hilgers2004/
- Hilgers TW. Chapter 21: Disorders of Human Ovulation: Endocrine Validation of the Sonographic Classification System. The Medical and Surgical Practice of NaProTECHNOLOGY. 2004. /library/chapter-21-disorders-of-human-ovulation-endocrine-validation-of-the-sonographic-rec7ansknivcqdwpg
This content is for educational purposes only and does not constitute medical advice. Consult an RRM clinician or healthcare provider for guidance specific to your situation.