07/14/2026
What is a Cesarean Scar Defect (C-section “Niche”)?
Also known as a diverticulum, isthmocele, or even a uteroperitoneal fistula, a cesarean scar defect is a condition where the uterine incision from a prior C-section does not heal properly—leaving a pouch or defect in the uterine wall.
While often overlooked, this condition can have real consequences, including:
• Abnormal bleeding
• Pelvic pain
• Infertility
• Chronic inflammation
In some cases, it may even contribute to more complex conditions such as uteroperitoneal fistulas.
As discussed in my article in OBG Management, proper diagnosis and treatment are critical. Evaluation requires careful imaging and clinical expertise—and when indicated, treatment should focus on restoring normal anatomy through precise surgical repair.
Like many conditions in pelvic surgery, outcomes depend on experience, technique, and a comprehensive approach.
Patients deserve awareness, accurate diagnosis, and effective treatment.
For more information, visit Nezhat.org.
Forward we go!🎗️