Gastric outlet obstruction and/or abnormal intestinal motility:
(1) postoperative ileus
(2) myotonic dystrophy
(3) diabetic gastroparesis
(4) postgastrectomy complication
(5) intestinal pseudo-obstruction
Neuropsychiatric risk factors:
(1) mental retardation
(2) psychiatric disturbances
(3) premature birth
where:
• I am not quite sure how postoperative ileus would result in a bezoar. It could occur if the person received a large amount of oral medication or concentrated milk products and the ileus lasted several days.
• Premature birth may be associated with cerebral palsy and with intestinal lesions.
A person with a gastric motility disorder may form a bezoar if exposed to:
(1) concentrated milk formula (lactobezoars)
(2) poorly soluble medications (pharmacobezoar)
(3) vegetable fiber and seeds (phytobezoar)
(4) candy
A person with mental retardation or a psychiatric disorder would be at risk if the following are noticed:
(1) pica
(2) trichotillomania or hair chewing (trichobezoar)
(3) swallowing foreign objects
