Rumination Disorder: Overview, Symptoms, Causes & Treatment

Rumination Disorder is a lesser-known eating disorder characterized by the repeated regurgitation of food, which may be re-chewed, re-swallowed, or spit out. Unlike vomiting, this process is effortless and not due to nausea or illness. It can occur in infants, children, and adults, often linked to developmental or psychological factors.

Key Symptoms

  • Frequent regurgitation of undigested food (usually within 30 minutes of eating).
  • Re-chewing, re-swallowing, or spitting out food (without distress or gagging).
  • No signs of gastrointestinal illness (e.g., acid reflux, nausea).
  • Weight loss or malnutrition (if food is consistently spit out).
  • Bad breath or tooth decay (from stomach acid exposure).

Common in:

  • Infants (3–12 months) with developmental delays.
  • Children/adults with intellectual disabilities or anxiety disorders.

Causes & Risk Factors

  • Developmental conditions (autism, intellectual disabilities).
  • Psychological stress (neglect, trauma, or anxiety).
  • Habitual behavior (unconscious self-soothing mechanism).
  • Gastrointestinal sensitivity (rarely, a learned response to discomfort).

Diagnosis

Doctors rule out:
✔ GERD (acid reflux)
✔ Gastroparesis (delayed stomach emptying)
✔ Pregnancy (morning sickness)
✔ Bulimia nervosa (intentional purging)

Diagnostic criteria (DSM-5):

  • Regurgitation occurs for ≥1 month.
  • Not due to another medical or mental health condition.

Treatment Options

  1. Behavioral Therapy (Most Effective)
    • Diaphragmatic breathing training (prevents regurgitation reflex).
    • Habit reversal techniques (distracting behaviors when urge arises).
    • Biofeedback (helps control abdominal muscles).
  2. Nutritional Support
    • Smaller, frequent meals to reduce stomach pressure.
    • Post-meal positioning (upright for 30+ minutes).
  3. Medical Intervention (if severe)
    • Prokinetic medications (if motility issues are present).
    • Dental care (to manage acid erosion).
  4. Family & Caregiver Education
    • Avoid punishment (can worsen anxiety).
    • Provide positive reinforcement for alternative behaviors.

When to Seek Help

  • If regurgitation persists beyond infancy (normal in babies but should resolve by 12 months).
  • If it leads to weight loss, dehydration, or social isolation.
  • If the behavior is distressing or interferes with daily life.

Early treatment improves outcomes, especially in children.