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Gastroparesis is a long term condition. It leads to inability of the stomach to empty its contents in the intestines. There is usually no blockage but damage to the vagus nerve. The vagus nerve is one of the most important nerves that regulate the muscles of the stomach and intestines and helps in forward propulsion of food.
When this nerve and other important nerves are damaged the muscles of the stomach and intestines do not work properly and the movement of food is slowed.
In some of the cases of gastroparesis the cause of the damage to the nerves is unknown. This is called idiopathic gastroparesis.
The most common cause of gastroparesis however is underlying diabetes mellitus. Diabetes leads to increased blood sugar. Raise blood sugar often damages blood vessels that supply essential nutrients to the nerves.
Over time diabetes damages nerves in a process called neuropathy. When the vagus nerve is damaged it predisposes a person to develop gastroparesis.
Other causes of gastroparesis include:-