Rapunzel syndrome, or trichobezoar, is an uncommon entity and secondary gastric perforation is exceptional. We found no adult cases reported in the literature. Our patient is a teenager with clinical symptoms of epigastric mass and acute abdomen. Radiological study showed pneumoperitoneum and intragastric mass. Personal history revealed depressive syndrome and anxiety. Urgent laparotomy confirmed the diagnosis of gastric perforation due to a trichobezoar completely moulding the gastric chamber. The diagnosis was suspected on the basis of radiologic images but laparotomy was required to confirm it.