Chronic mesenteric ischemia is a condition where the blood flow to the intestines is reduced over time, often due to narrowed or blocked arteries. This reduced blood supply can lead to abdominal pain, especially after eating, as the intestines require more blood to digest food. The condition is commonly caused by atherosclerosis, where fatty deposits build up in the arteries. Diagnosis typically involves imaging tests, and treatment may include lifestyle changes, medications, or surgical procedures to restore proper blood flow to the intestines.