Regurgitation is the expelling of digestive contents from the stomach or upper alimentary tract, usually containing undigested food.
This distinguishes it from vomiting, which is usually a sign of more systemic illness such as food poisoning, gastroenteritis, motion-sickness, etc.
Diseases associated with this condition include:
- Oral diseases
- Esophageal disease
- - Esophagitis
- - Megaesophagus
- - Gastroesophageal intussusception
- - Vascular ring anomaly
- - Hiatal hernia
- - Esophageal diverticula
- - Peritoneopericardial hernia
- Gastric diseases
- Neuromuscular disorders