Causes of secondary constipation
| Neurologic and motility disorders Amyloidosis Diabetes Hirschsprung disease Hypothyroidism Multiple sclerosis Parkinson disease Spinal cord injury Spinal or ganglionic tumors Stroke |
| Diseases in which treatment can cause constipation Bipolar disorder Chronic pain Depression Parkinson disease Schizophrenia |
| Medications Anticholinergics Anticonvulsants Antidepressants Antipsychotics Antispasmodics Calcium channel blockers Opioids |
| Other causes Chagas disease Conversion disorder Decreased fluid intake Hypercalcemia Hyperparathyroidism Low-fiber diet Mechanical obstruction |