Background: Rupture of a pregnant uterus occurs most often in a scarred uterus, and spontaneous rupture of an unscarred uterus in the second trimester is very rare. Case: An extremely rare case of spontaneous uterine rupture involving uterine fundus at 16 weeks of gestation in an unscarred uterus, and with no apparent risk factors, is reported. Results: Surgery was performed to remove the fetus and placenta, the patient received a transfusion of red blood cells as well as antibiotics. The postoperative period was uneventful, and the patient was discharged in stable condition. Conclusions: Uterine rupture should be considered as a possibility in a pregnant woman with severe abdominal pain, regardless of gestation, and even in absence of classic risk factors. (J GYNECOL SURG 30:108)
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