What are some causes of abdominal pain?

There are so many causes of abdominal pain. Rather than providing a long list, it’s more helpful to consider the following:
•    Is the pain all over, or is localized to one part of the abdomen?
•    What are the features of the pain? Does it come and go or always present? Crampy, burning or sharp? Does the pain stay in one place or radiate to the back?
•    Are there changes in bowel movements: diarrhea, constipation, blood, mucous?
•    Can you maintain hydration? If not, are you vomiting or have fever? Not being able to stay hydrated should always prompt a call for medical advice or an immediate medical evaluation?
Based on these answers, the list of possible causes becomes more manageable.