Generally, hydatid cysts present asymptomatically, and a radiographical examination for another reason leads to the cysts being discovered by accident. The symptoms of some patients may depend on the location, size, and relationship between the cyst and the adjacent structures. There is a high risk of perforation of the cysts into adjacent structures, such as a biliary tree, major vessels, hollow viscera, and the peritoneum. The aim of this report is to provide an overview of a case with an unusual hepatic hydatid cyst rupture (post- bariatric) accompanied by an in-depth review of the literature. Our hospital was approached by a female patient of 46 years with a history of abdominal pain, diarrhea, and hypotension. The hepatic cyst had spontaneous rupture. IgG results of enzyme-linked immunosorbent assays were negative. Two days before laparoscopic surgery, the patient was given urgent resuscitation and treated with albendazole. Following the surgery, no recurrence was seen (22 months postoperatively). Hydatid cysts can develop an extremely rare and life-threatening complication, intraperitoneal perforation, after a significant weight loss. After judicious medical treatment for allergic reactions, it is essential to treat the patients with appropriate emergent surgical management (including laparoscopy) as quickly as possible.