The most common cause of gastroparesis is diabetes. High glucose levels can cause chemical changes in the nerves and over time damage the nerves that control the stomach muscles. Some patients develop gastroparesis and/or dysmotility as a primary disease but with no known cause, this is termed idiopathic. Other motility diseases and disorders are secondary, as a result of medical conditions such as Parkinson’s Disease, neurological and smooth muscle diseases. Currently, 1 in 4 diabetics develop gastroparesis/dysmotility. Other causes can be abdominal surgeries, intestinal viruses or bacterial infections, some cancer treatments, and anorexia or bulimia.