II. Causes: Functional
- See Constipation due to Functional Causes
- Anxiety Disorder
- Major Depression
- Sedentary
- Low fiber diet
- Dehydration
- Irritable Bowel Syndrome
- Pregnancy
III. Causes: Intrinsic Colon Disease
- Stenosis
- Colonic stricture
- Volvulus
- Hernia
- Colonic Tumors with obstruction
- Ischemic Colitis
- Diverticulitis
- Endometriosis
- Inflammatory Bowel Disease
IV. Causes: Disorders of the anus and Rectum
- Rectocele
- Enterocele
- Intussusception
- Descending perineum syndrome
- Idiopathic Megarectum
V. Causes: Neurologic and Neuromuscular
- Scleroderma
- Amyloidosis
- Cerebrovascular Accident
- Multiple Sclerosis
- Parkinson's Disease
- Hirschsprung's Disease (children)
- Meningocele
- Spinal cord tumor or injury
- Myotonic Dystrophy
- Diverticulosis
- Intestinal pseudo-obstruction
- Traumatic Brain Injury
- Autonomic Neuropathy
- Dementia
VI. Causes: Metabolic and Endocrine Disorders
VII. Causes: Medications
VIII. References
- Cheskin in Barker (1995) Ambulatory Med, p. 476-81
- Friedman (1991) Medical Diagnosis, p. 192-4
- Borum (2001) Prim Care 28(3):577-90 [PubMed]
- Wald (2000) Med Clin North Am 84(5):1231-46 [PubMed]