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.
When to Contact a Medical Professional
Call your health care provider if you have:
Flank pain along with a high fever, chills, nausea, or vomiting
Blood (red or brown color) in the urine
Prolonged, unexplained flank pain
What to Expect at Your Office Visit
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:
Is the pain on one side only or both sides?
Is the pain mild or severe?
Does the pain occur from time to time and get worse over seconds to minutes?
Is the pain crampy or colicky?
Is the pain severe enough to require strong pain relievers?
Did the pain begin recently?
Has the pain been gradually getting worse over time?
Did the pain rapidly get worse?
Does the pain go into your groin?
Does the pain go into your back?
Does the pain go up into your chest?
Does the pain occur with nausea or vomiting?
What other symptoms do you have?
The health care team may also monitor and record your fluid intake and output.
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.
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.