Those with suspected with<unk> s usually have acute onset of abdominal pain with signs of local or generalised inflammations such as pain, tenderness (pain on touching), fever, tachycardia (increased heart rate), or tachypnea (increased breathing rate). In more severe cases, such as organ failure, signs such as hypotension (low blood pressure), oliguria (reduced urine output), sudden onset of altered level of consciousness, and lactic acidosis will appear. In case of appendicitis, signs such as fever, positive psoas sign, migration of pain from umbilicus to the right iliac fossa increases the likelihood of the disease; while signs such as vomiting before the pain reduces its likelihood to occur.
Intra-abdominal infection
Abdominal trauma
Bowel obstruction
Retroperitoneal bleeding
Genitourinary tract injury
Intestinal ischemia
Postoperative fever
Splenic injury