The aim of this study was to review the literature regarding the rupture of hydatid cysts into the abdominal cavity after trauma. We present both a new case of hydatid cyst rupture that occurred after blunt abdominal trauma and a literature review of studies published in the English language about hydatid cyst rupture after trauma; studies were accessed from PubMed, Google Scholar, EBSCO, EMBASE, and MEDLINE databases. We identified 22 articles published between 2000 and 2011 about hydatid cyst rupture after trauma. Of these, 5 articles were excluded because of insufficient data, duplication, or absence of intra-abdominal dissemination. The other 17 studies included 68 patients (38 males and 30 females) aged 8 to 76 years who had a ruptured hydatid cyst detected after trauma. The most common trauma included traffic accidents and falls. Despite optimal surgical and antihelmintic therapy, 7 patients developed recurrence. Complications included biliary fistula in 5 patients, incisional hernia in 2 patients, and gastrocutaneous fistula in 1 patient. Death occurred from intraoperative anaphylactic shock in 1 patient and gastrointestinal bleeding and pulmonary failure in 1 patient. Rupture of a hydatid cyst into the peritoneal cavity is rare and challenging for the surgeon. This condition is included in the differential diagnosis of the acute abdomen in endemic areas, especially in young patients.