Pica and Rumination Disorder

Pica and Rumination Disorder

Pica and Rumination Disorder

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Pica - Craving Curiosities

  • Persistent eating of non-nutritive, non-food substances for ≥ 1 month.
  • Behavior is developmentally inappropriate (not diagnosed in children < 2 years old).
  • Not part of a culturally sanctioned or socially normative practice.
  • If co-occurring with another disorder (e.g., Autism Spectrum Disorder, Intellectual Disability) or medical condition (e.g., pregnancy), it is severe enough to warrant separate clinical attention.
  • Common Forms & Substances:
    • Geophagia (earth, soil, clay)
    • Amylophagia (raw starch, e.g., cornstarch)
    • Pagophagia (ice) 📌 Mnemonic: "P"agophagia for "P"ure ice.
    • Lithophagia (stones, pebbles)
    • Others: paint chips, paper, hair, cloth, string.
  • Key Associations:
    • Nutritional Deficiencies: Iron deficiency anemia (esp. with pagophagia), zinc deficiency.
    • Neurodevelopmental Disorders: Intellectual Disability (ID), Autism Spectrum Disorder (ASD).
    • Pregnancy.
    • Socioeconomic Factors: Poverty, neglect, lack of supervision.
  • Potential Complications:
    • Toxicity: Lead poisoning (from paint chips), heavy metal poisoning.
    • Gastrointestinal: Obstruction, perforation, bezoars, parasitic infections (e.g., toxocariasis).
    • Dental injury, malnutrition.
  • Management Principles:
    • Screen for & correct nutritional deficiencies (especially iron).
    • Behavioral interventions (e.g., positive reinforcement for appropriate eating).
    • Ensure a safe and enriched environment.

⭐ Pagophagia (compulsive ice eating) is a specific craving highly suggestive of, and often a presenting symptom for, iron-deficiency anemia.

Cornstarch, a common pica substance

Rumination Disorder - Regurgitation Reflex

  • Repeated regurgitation of food for a period of at least 1 month.
    • Food may be re-chewed, re-swallowed, or spat out.
    • Not attributable to an associated gastrointestinal or other medical condition (e.g., gastroesophageal reflux, pyloric stenosis).
  • The eating disturbance does not occur exclusively during the course of Anorexia Nervosa, Bulimia Nervosa, Binge-Eating Disorder, or Avoidant/Restrictive Food Intake Disorder.
  • If symptoms occur in the context of another mental disorder (e.g., intellectual developmental disorder, neurodevelopmental disorder), they are sufficiently severe to warrant additional clinical attention.
  • Clinical Presentation:
    • Effortless regurgitation, typically within 10-30 minutes of initiating or completing a meal.
    • No associated nausea, retching, disgust, or abdominal pain.
    • Behavior may appear habitual or self-soothing; individuals may seem to derive satisfaction.
    • Can occur in infants (often begins between 3-12 months of age), children, adolescents, and adults.
    • Infants: May arch their back, strain, hold head back, make sucking movements with tongue.
  • Associated Problems & Complications:
    • Weight loss, failure to make expected weight gains (failure to thrive in infants/children).
    • Malnutrition (e.g., electrolyte disturbances), dehydration.
    • Dental erosion, halitosis (bad breath).
    • Social isolation, shame, avoidance of eating in public.
  • Management Focus:
    • Behavioral interventions: Habit reversal training (HRT), diaphragmatic breathing exercises, relaxation techniques.
    • Distraction and positive reinforcement, especially for children.
    • Addressing any psychosocial stressors.

⭐ Unlike vomiting, the regurgitated food in rumination disorder is often undigested and may retain a palatable taste, which can reinforce the behavior through re-chewing and re-swallowing for some individuals.

Pica & Rumination: Dx & Mx - Tackling Troubles

Pica

  • Dx: Persistent eating of non-nutritive, non-food substances (≥ 1 month). Inappropriate for developmental level (not < 2 years old). Not culturally supported. If with other disorder/condition, warrants extra clinical attention.
  • Mx:
    • Address nutritional deficiencies (e.g., iron, zinc).
    • Behavioral interventions (e.g., positive reinforcement for appropriate eating, discrimination training).
    • Environmental modification (e.g., restrict access to pica items).

Rumination Disorder

  • Dx: Repeated food regurgitation (≥ 1 month); may be re-chewed, re-swallowed, or spat out. Not due to GI/medical condition. Not exclusive to other eating disorders. If with other disorder, warrants extra clinical attention.
  • Mx:
    • Behavioral therapy: Habit Reversal Training (HRT) is cornerstone. Includes awareness training, competing response (e.g., diaphragmatic breathing).
    • Psychoeducation for patient & family.

⭐ In Rumination Disorder, regurgitation is often effortless and not associated with nausea or disgust, unlike vomiting.

High‑Yield Points - ⚡ Biggest Takeaways

  • Pica: Persistent eating of non-nutritive substances (e.g., soil) for ≥1 month; developmentally inappropriate (not before 2 years).
  • Key Pica associations: iron-deficiency anemia, lead poisoning, Intellectual Disability (ID), Autism Spectrum Disorder (ASD).
  • Rumination Disorder: Repeated food regurgitation (re-chewed, re-swallowed, or spat out) for ≥1 month.
  • Rumination is not due to medical conditions (e.g., GERD) or other eating disorders.
  • Rumination onset: often infancy (3-12 months), but can occur at any age.
  • Both disorders require symptoms to be clinically significant if co-occurring with other conditions (e.g., ASD, pregnancy).

Practice Questions: Pica and Rumination Disorder

Test your understanding with these related questions

A young lady presents with a history of repeated episodes of overeating followed by purging using laxatives. She is probably suffering from -

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Flashcards: Pica and Rumination Disorder

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_____ disorder is associated with dependence on enteral feeding or oral nutritional supplements

TAP TO REVEAL ANSWER

_____ disorder is associated with dependence on enteral feeding or oral nutritional supplements

Avoidant/restrictive food intake

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