I. Introduction
II. Potential Causes of Abdominal Pain
1. Acute or Chronic Pain
III. Main Types of Abdominal Pain
1. Visceral Pain
2. Parietal Pain
3. Neurogenic Pain
4. Psychogenic Pain
5. Referred Pain
IV. Pain Classification and Comorbid Disease
1. Tension Abdominal Pain
2. Inflammatory Pain
3. Ischemic Pain
V. Abdominal Disease Conditions
1. Peritonitis
2. Pancreatitis
3. Appendicitis
4. Cholecystitis
5. Inflammatory Bowel Disease
6. Ischemic Bowel Disease
VI. Summary