Differential diagnosis of acute abdo pain

Generalised abdo pain

• Peritonitis
• Ruptured AAA
• Intestinal obstruction
• Ischaemic colitis

RUQ pain

• Biliary colic
• Acute cholecystitis
• Acute cholangitis
• Hepatitis
• pneumonia

Epigastric pain

• Acute gastritis
• Pacreatitis
• Peptic ulcer disease
• Ruptured AAA

LUQ pain

• Pancreatitis
• Splenic infarct
• Splenic rupture
• Splenic Abscess

Right flank pain

• Kidney stones
• Pyelonephritis
• Colitis

Central abdo pain

• Early appendicitis
• Intestinal obstruction
• Ruptured AAA
• Ischaemic colitis

Left flank pain

• Kidney stones
• Pyelonephritis
• Colitis

RIF pain

• Acute Appendicitis
• Ruptured ovarian cyst
• Ovarian torsion
• Ectopic pregnancy
• Meckels diverticulitis
• Mesenteric adenitis

Suprapubic pain:

• Lower urinary tract infection
• Acute urinary retention
• Pelvic inflammatory disease
• Prostatitis

Left iliac fossa pain

• Diverticulitis
• Ectopic pregnancy
• Ruptured ovarian cyst
• Ovarian torsion

Loin to groin pain:

• Renal colic (kidney stones)
• Ruptured abdominal aortic aneurysm
• Pyelonephritis

Testicular pain:

• Testicular torsion
• Epididymo-orchatitis
• Strangulated inguinal hernia