When Progesterone Rises, but No Egg Is Released… – Fertility Plus
Fertility Plus shared on LinkedIn։
“When Progesterone Rises, but No Egg Is Released.
Did you know that sometimes a follicle can grow and respond to ovulation hormones but not actually release an egg? This condition is known as a luteinised unruptured follicle (LUF).
Here’s the catch: even if progesterone levels rise and your period arrives on time, it doesn’t guarantee that ovulation occurred. Serial ultrasound scans are essential to monitor follicle growth and confirm if it collapses after ovulation.
In a natural-cycle study, LUF was found in about 11% of women with unexplained infertility. A separate study involving clomiphene-stimulated IUI cycles revealed a higher incidence of 25%.
While this might sound alarming, it doesn’t mean every woman with unexplained infertility needs repeated scans. However, monitoring could uncover insights that a single progesterone test may miss!
For personalized fertility advice, reach out to us at Fertility Plus!”

Other articles featuring Fertility Plus on Fertility News.
-
Oct 22, 2026, 17:36Filipa Rafael: A Woman Should Not Have to Be Trying for a Baby for Her Ovarian Insufficiency to Matter
-
Oct 22, 2026, 17:30Michele Boiani: New Insight on Zona Pellucida Proteins
-
Oct 22, 2026, 17:01Sean Lauber: New Review Assesses PGT-A Effectiveness and Safety
-
Oct 22, 2026, 16:56Eric Lameignere: Optimizing Sperm Handling Conditions in the IVF Laboratory
-
Oct 22, 2026, 16:49Rajeev Agarwal: Most Failed IVF Transfers Are About the Embryo, Not the Uterus
-
Oct 22, 2026, 16:44Devyanshi Dixit: Calling for Delegates for GFWH 2026
-
Oct 22, 2026, 16:35Kate Ryder: Headed to ASRM 2026 and Looking Forward to Spending Time with Clinic Partners
-
Oct 22, 2026, 16:27Can PCOS/PMOS Increase the Risk of Premature Death? – PCOS Millennials
-
Oct 22, 2026, 16:18Margaret Cali: Before IVF Begins, a Lot of Preparation Happens…
