Flank pain refers to pain in one side of the body between the upper abdomen and the back.
Flank pain often means kidney trouble. If flank pain is accompanied by fever, chills, blood in the urine, or frequent or urgent urination, then a kidney problem is the likely cause.
See also: Kidney stones
Treatment depends on the cause. Follow your provider's instructions.
Rest, physical therapy, and exercise may be recommended for flank pain caused by muscle spasm.
Anti-inflammatory drugs and physical therapy may be prescribed for flank pain caused by spinal arthritis. Continue physical therapy exercises at home.
Antibiotics are used to treat most kidney infections. Plenty of fluids and pain medications are used to treat kidney stones. Hospitalization may be required for either condition.
Call your health care provider if you have:
If the pain is related to an injury, your condition will be stabilized. Then, the health care provider will perform a physical examination and ask questions about your medical history and symptoms, including:
The health care team may also monitor and record your fluid intake and output.
The following tests may be done:
Pain - side; Side pain
Proctor DD. Approach to the patient with gastrointestinal disease. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders; 2007:chap 134.
Millham FH. Acute abdominal pain. In: Feldman M, Friedman LS, Brandt LJ, eds. Sleisenger and Fordtran's Gastrointestinal and Liver Disease. 9th ed. Philadelphia, Pa: Saunders Elsevier; 2010:chap 10.
Updated by: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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