“…In recent decades, many studies have been conducted on cesarean scar defects (CSD), which may lead to gynecological symptoms, such as abnormal uterine bleeding (AUB), spotting, dysmenorrhea, chronic pelvic pain, dyspareunia, and secondary infertility. 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 Furthermore, they showed that the most common descriptor of CSD‐associated AUB was “brown discharge.” Additionally, CSD is described by other terms in the literature, such as isthmocele, 7 , 13 , 14 , 15 cesarean scar dehiscence, 16 , 17 uterine diverticulum, 18 , 19 niche, 20 , 21 , 22 uterine transmural hernia, 23 and cesarean scar pouch. 24 , 25 Although many terms express the lack of the myometrium in the anterior wall of the uterine isthmus due to CS, they are collectively referred to as CSD in this review.…”