Ileus causes

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Mechanical Obstruction

• Adenomatous polyps
• Adhesions
• Adhesive bands
• Annular pancreas
• Ascariades
• Atresia
• Biliary calculus
• Bowel duplication
• Carcinomatosis
• Colon Cancer
• Congenital megacolon
• Crohn's Disease
• Cysts
• Diverticular stricture
• Diverticulitis
• Endometriosis
• Foreign body
• Gallstone ileus
• Hematoma of the bowel wall
• Hernia
• Hirschprung's disease
• Iatrogenic
• Imperforate anus
• Incarcerated hernia
• Inflammatory
• Intrabdominal abscess
• Intrabdominal hematoma
• Invagination, intussisception
• Ischemia
• Malrotation
• Meckel's Diverticulum
• Megacolon
• Multiple polyposis syndromes
• Neoplasm
• Ovarian Cancer
• Pneumatosis intestinalis
• Postoperative
• Pregnancy
• Radiation induced stenosis
• Sarcoma
• Scleroderma
• Surgical anastomosis
• Therapy with dietary fiber
• Trauma
• Tuberculosis
• Ulcerative colitis
• Volvulus

Non-Mechanical Obstruction

• Acid-base imbalance
• Acute pancreatitis
• Anticholinergics
• Antihistamines
• Apoplexy
• Brain tumor
• Cancer
• Catecholamines
• Cholecystolithiasis
• Connective tissue disease
• Diabetic coma
• Empyema
• Hyperparathyroidism
• Hypokalemia
• Lead poisoning
• Lymphoma
• Mechanical ventilation
• Mesenteric infarction
• Morphine
• Narcotics
• Osteomyelitis of the spine
• Ovarian torsion
• Pancreatitis
• Penetrating wounds
• Perinephric abscess
• Peritoneal carcinomatosis
• Peritonitis
• Pneumonia
• Porphyria
• Postoperative
• Psoas abscess
• Pyelonephritis
• Renal colic
• Retroperitoneal hematoma
• Spinal cord inflammation
• Spinal cord injury
• Spinal cord trauma
• Systemic infection
• Testicular torsion
• Ulcer perforation
• Uremia
• Urosepsis
• Vitamin deficiency

Pseudo-Obstruction

• Aerophagia
• Functional bowel disease

Common Causes

• List the most common causes here.

Causes by Organ System

Cardiovascular	No underlying causes
Chemical/Poisoning	No underlying causes
Dental	No underlying causes
Dermatologic	No underlying causes
Drug Side Effect	No underlying causes
Ear Nose Throat	No underlying causes
Endocrine	No underlying causes
Environmental	No underlying causes
Gastroenterologic	No underlying causes
Genetic	No underlying causes
Hematologic	No underlying causes
Iatrogenic	No underlying causes
Infectious Disease	No underlying causes
Musculoskeletal/Orthopedic	No underlying causes
Neurologic	No underlying causes
Nutritional/Metabolic	Acute intermittent porphyria
Obstetric/Gynecologic	Endometriosis , Neonatal necrotizing enterocolitis , Pregnancy
Oncologic	Cancer , Peritoneal carcinomatosis , Sarcoma , lymphoma
Ophthalmologic	No underlying causes
Overdose/Toxicity	No underlying causes
Psychiatric	No underlying causes
Pulmonary	Mechanical ventilation
Renal/Electrolyte	Acid-base imbalance disturbance , Hypokalaemia , Hypomagnesemia , Kidney diseases , Pyelonephritis , Renal colic , Uremia
Rheumatology/Immunology/Allergy	Connective tissue disease , Henoch-Schönlein purpura , Scleroderma
Sexual	No underlying causes
Trauma	Injury or trauma to abdomin , Injury to the abdominal blood supply , Penetrating wounds
Urologic	No underlying causes
Miscellaneous	No underlying causes

Causes in Alphabetical Order

Abdominal infections Abdominal surgery Abdominopelvic abscess Acid-base imbalance Acute pancreatitis Acute intermittent porphyria Adenomatous polyps adhesions Anastomotic leaks Annular pancreas Anticholinergic drugs Antihistamines Apoplexy Appendicitis Ascariades Atresia Biliary calculus Botulism Burns Cancer Carcinomatosis Cholecystitis Cholecystolithiasis Colon Cancer Complications of intra-abdominal surgery Congenital megacolon Connective tissue disease Crohn's Disease Cysts Diabetic coma Diabetic ketoacidosis Disorders that affect muscle function Diverticular stricture Diverticulitis Endometriosis foreign bodies

Gallstone ileus Gastrointestinal bleeding Heart Attack Hematoma of the bowel wall Hemoperitoneum Henoch-Schönlein purpura Hernia Hirschprung's disease Hyperparathyroidism Hypokalaemia Hypomagnesemia Imbalance of electrolytes Imperforate anus Incarcerated hernia Infections Injury or trauma to abdomin Injury to the abdominal blood supply Intestinal ischaemia Intrabdominal abscess Intrabdominal hematoma intraperitoneal infection intussusception Joint or spine surgery Kidney diseases Laparotomy Lead poisoning Lymphoma Malrotation Mechanical ventilation Meckel's Diverticulum Megacolon Mesenteric infarction Mesenteric ischemia Metabolic disturbances Morphine Multiple polyposis syndromes

Narcotic Neonatal necrotizing enterocolitis neoplasms Opiates Osteomyelitis of the spine Pancreatitis Penetrating wounds Perinephric abscess Peritoneal carcinomatosis Peritonitis Pneumatosis intestinalis Pneumonia Porphyria Postoperative Pregnancy Psoas abscess Pyelonephritis Radiation induced stenosis Renal colic Retroperitoneal hematoma Sarcoma Scleroderma Sepsis Severe generalized infections Spinal cord inflammation Spinal cord injury Superior mesenteric artery occlusion Surgery complication Surgical anastomosis Thallium Tuberculosis Ulcer perforation Ulcerative colitis Uremia Urosepsis Volvulus

References