Diabetic gastroparesis is an emptying disorder of the stomach caused by damage to the autonomic nerves (autonomic neuropathy). The stomach empties significantly more slowly than normal, even though there is no mechanical obstruction. This leads to severe blood sugar fluctuations and significant discomfort.
Causes
The main cause is long-standing, poorly controlled hyperglycemia, which damages the autonomic nerves of the gastrointestinal tract. Favoring factors are:
- Long duration of diabetes
- Severe autonomic neuropathy
- Smoking and high blood pressure
Symptoms
Typical complaints are:
- Early feeling of satiety and fullness even after small meals
- Nausea and vomiting of undigested food hours after eating
- Upper abdominal pain and belching
- Strong blood sugar fluctuations (early hypos and late hyperglycemia)
Diagnostics
The most important investigation is this Gastric emptying scintigraphy. A test meal containing a weakly radioactive marker is consumed and the speed at which the stomach empties is observed over several hours. Other methods include breathing tests or the wireless motility capsule.
Therapy and management
The treatment includes several pillars:
- Optimization of blood sugar control (most important measure)
- Change in diet: small, low-fat and low-fiber meals, lots of liquids
- Medications to stimulate gastric motor skills (e.g. domperidone)
- In severe cases: botulinum injection into the stomach outlet or surgical measures
Further information:
→ Diabetes mellitus – knowledge and overview
→ Why hyporest
→ Diabetic neuropathy
Sources
- German Diabetes Society (DDG). S3 guideline “Type 2 diabetes”. As of 2025. Available at: www.deutsche-diabetes-gesellschaft.de/leitlinien.
- American Diabetes Association. Standards of Medical Care in Diabetes—2026. Diabetes Care. 2026;49(Suppl 1). Available at: diabetesjournals.org.
- Robert Koch Institute (RKI). Federal health reporting – diabetes mellitus in Germany. Berlin 2024.
- International Diabetes Federation (IDF). IDF Diabetes Atlas. 11th edition. Brussels 2025. Available at: diabetesatlas.org.
Important note:
The information in this encyclopedia article is intended solely for general and non-binding information. They do not replace medical advice, diagnosis or therapy. If you have any health questions or complaints, please always consult a doctor or qualified healthcare professional. The content was created with the greatest possible care, but errors cannot be completely ruled out.
Last updated: February 26, 2026
