What Are Some Causes of Pain in the Middle Back and Stomach?

Acute pancreatitis is a common cause of abdominal pain which may spread to the back, according to MedlinePlus. Other common causes of abdominal pain include constipation, irritable bowel syndrome, ulcers, hernias, kidney stones, and digestive conditions like lactose intolerance, food poisoning and stomach viruses, notes WebMD.

Pancreatitis may cause gas, indigestion, swelling of the abdomen, hiccups and jaundice, reports MedlinePlus. The condition is commonly associated with gallstones and high alcohol consumption. The pain may worsen after eating, particularly if foods are high in fat. Pain is typically felt in the middle or upper left side of the abdominal area, and it can be worse when lying flat on the back.

Most conditions causing abdominal pain are not severe, and most people experience stomach discomfort at some point within their lifetimes; however, if pain is accompanied by fever, dehydration, painful or frequent urination, vomiting, or constipation, or if the pain is intense, WebMD recommends seeking medical treatment. Other symptoms that indicate a more severe problem include prolonged pain or tenderness of the affected area. If someone experiences bloody or black stools, bloody vomit or difficulty breathing, or if the pain is a result of an injury, he should seek immediate medical help.