A silent rupture of an unscarred uterus is a rare phenomenon. Accidental diagnosis of silent rupture during sterilization procedure in a previous vaginal delivery is rarely reported. We present a case of uterine rupture in an unscarred uterus in a 40-year-old gravida 10 para 9 with intrauterine fetal demise terminated with prostaglandin E2. She was asymptomatic and hemodynamically stable. Hemoperitoneum was observed during a tubal ligation procedure performed on the third day after the abortion. A right-sided broad ligament hematoma was noticed, and surgical treatment was initiated when the patient’s condition clinically deteriorated during the operation. Our article aims to raise obstetricians’ awareness of an important causative factor of hemoperitoneum found during postpartum tubal ligation surgery.