Home Health What is sphincter of Oddi dysfunction?

What is sphincter of Oddi dysfunction?


Sphincter of Oddi dysfunction is a rare condition affecting the digestive system. It can cause considerable discomfort in the abdomen, but it is possible to manage symptoms with lifestyle changes and medication.

This article will discuss what sphincter of Oddi dysfunction (SOD) is, along with its symptoms and causes. It also covers diet and treatment.

What is sphincter of Oddi dysfunction?

SOD occurs when the sphincter of Oddi does not open and close properly. This can happen for many reasons, including:

SOD creates a buildup of digestive juices in the pancreas and liver, which leads to intense abdominal pain.

The pancreas produces pancreatic juices, and the liver produces bile, which are chemicals that help to digest food in the intestines. Usually, these chemicals enter the small intestines through a duct, which is opened and closed by a surrounding muscle called the sphincter of Oddi.

SOD can cause:

  • biliary dysfunction, which occurs when the fluids build up in the liver
  • pancreatitis, which develops when the buildup happens in the pancreas


People with SOD typically experience severe abdominal pain. The pain may be recurrent and can vary in intensity. Other symptoms of SOD can include:


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