Causes of<unk>  include: * Penetrating trauma * Blunt trauma, most commonly injuries to solid organs such as the liver and spleen. * Vascular accidents, such as rupture of an abdominal aortic aneurysm, iliac aneurysm, or splenic aneurysm. * Bleeding due to a ruptured ectopic pregnancy or uterine rupture. * Rupture of corpus luteum in some cases. * Less commonly, bleeding due to a perforated gastric ulcer. * Bleeding due to rupture of an intra-abdominal neoplasm, (e.g., Hepatoblastoma) * Disseminated intravascular coagulation * People on high dose of anticoagulants (blood thinners) * Perforation of the colon
Hemoperitoneum
Pneumoperitoneum
Retroperitoneal bleeding
Acute abdomen
Peritonitis
Hepatic hydrothorax
Hemarthrosis
Gastrointestinal perforation