This study aimed to evaluate uterine scar thickness and integrity using transvaginal ultrasonography in women randomly assigned to single versus double-layer closure of the uterine incision, with a comparison between the two groups.

Cesarean section (CS) is one of the most commonly performed major abdominal operations in women in both high and low-income countries.

Single-layer closure using a running locking stitch is associated with decreased operative time and fewer additional haemostasis sutures. An extensive Canadian study found a fourfold increase in the risk of uterine rupture in a woman who had a single layer in their previous pregnancy.

Transvaginal ultrasound is a validated tool for evaluating uterine scar defects, commonly referred to as a niche. It is used to asses the uterine scar thickness in a women with previous cesarean delivery.

Inclusion Criteria:

• Age from 20 to 40 years old.
• Pregnant women underwent their first cesarean section.

Exclusion Criteria:

• Body mass index (BMI) ≥ 30 kg /m2.
• Multiple gestations.
• Uterine malformation.
• Placenta previa.
• Placenta accreta.
• Uterine or cervical fibroid.
• Any previous uterine operation or any medical disease that compromises wound healing, such as diabetes mellitus, collagen diseases, anemia, or corticosteroid therapy.

Pregnant women underwent their first cesarean section.

The data will be available upon a reasonable request from the corresponding author after the end of study for one year.

After the end of study for one year.

The data will be available upon a reasonable request from the corresponding author.