Gastroparesis is a disorder in which the stomach takes too long to empty after eating. The delay is caused by damage to the stomach nerves or muscles and results in bloating, heartburn, and belly pain.

Diabetes is one of the most common causes of gastroparesis. Other causes include some disorders of the nervous system, such as Parkinson's disease and stroke, and some medicines, such as tricyclic antidepressants, calcium channel blockers, and opioids.

Other common symptoms of gastroparesis are:

• A feeling of fullness after only a few bites of food.
• Nausea.
• Vomiting.

Symptoms range from mild to severe. Severe symptoms of gastroparesis may improve with treatment using medicines that help with nausea and vomiting (antiemetics) and medicines that help the stomach empty more quickly (motility agents). In very severe cases, a feeding tube placed in the small intestine may be needed.