Diseases or problems with any of the organs inside the abdominal cavity can lead to pain as well as other symptoms such as a change in bowel habits, nausea, or vomiting.

Abdominal pain may be:

• Acute (sudden) or chronic (ongoing)
• Crampy or sharp
• Associated with abdominal rigidity (board-like stiffness)

Rigidity suggests peritonitis and may be due to a ruptured organ (such as the appendix).

Pain in the abdomen may also start from somewhere else -- such as your chest or pelvic area. It may be due to an infection (such as the flu or strep throat) that affects many parts of your body.

If you have any sudden onset of abdominal pain, you should seek immediate medical attention. Call your local emergency number (such as 911) or go to the hospital emergency room if:

• You are dizzy or light-headed
• You are unable to pass stool, especially if you are also vomiting
• You are vomiting blood or have blood in your stool (especially if maroon or dark, tarry black)
• You have chest, neck, or shoulder pain
• You have pain with a fever (over 100 degrees Fahrenheit for adults or 100.4 degrees Fahrenheit for children)
• You have sudden, sharp abdominal pain
• Your abdomen is tender and hard to the touch

King KE, Wightman JM. Abdominal Pain. In: Marx J. Rosen's Emergency Medicine: Concepts and Clinical Practice. 6th ed. St. Louis, Mo: Mosby; 2006: Chap. 22.