Inclusion Criteria:  Women aged 18-40 years old. Women who are pregnant in singleton mid-trimester missed abortion (14-24 weeks). Bishop's score is ≤ 4.  Exclusion Criteria:  Women who delivered before by classic caesarian section or had a history of -myomectomy, hysteroscopic uterine surgery, or cervical surgery like conization. Women with multiple gestations. Women with ultrasonography evidence of low amniotic fluid volume. Women with rupture of fetal membranes. Women with evidence of low implanted placenta by ultrasound. History or laboratory evidence of intra-uterine infection. History is suggestive of latex allergy. Women with severe anemia, hypertension, diabetes, or with coagulopathy.