The abdominal organs consist of stomach, intestines, liver, gall bladder, spleen and kidneys.
Malfunction any of them can cause pain in the left abdomen. The stomach and spleen located to the left of the midline. By far the most common causes of chronic, dull abdominal pain
of the stomach lining called gastritis
, and a gastric or duodenal (first segment of small intestine) ulcer.