The aim of the article was to present and discuss the phenomenon of delayed fatal spleen rupture case. A 13-year-old boy was referred to hospital because of his poor general condition, convulsions, tachypnea, shallow breathing, severe paleness, abdominal tenderness, decrease in blood pressure, low blood hemoglobin levels, leukocytosis. Abdominal pain complaints began second day night, after abdominal trauma during soccer game with classmates. Autopsy macroscopic examination revealed coagulated blood in abdominal cavity and large perisplenic haematama. Spleen with a big subcapsular and intrasplenic hematoma was observed on dissection. It is concluded that early diagnosis is the most important measure to reduce mortality. In terms of autopsy examination, proper investigation during forensic autopsy will contribute in understanding the pathophysiology of this phenomenon.