Flank Pain: Causes, Symptoms & Diagnosis
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What causes flank pain? 21 possible conditions

Flank pain refers to pain or discomfort in your upper abdomen or back. It is located below the ribs and above the pelvis and on the side. Flank pain basically refers to pain in your side and back. Usually, the pain is worse on one side of your body. Most... Read more

See a list of possible causes in order from the most common to the least.

1

Kidney Stones

Kidney stones are solid masses of crystalized calcium or other substances that originate in the kidneys but can pass through the urinary tract. The greatest risk factor is making less than one liter of urine per day.

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2

Obstructive Uropathy

Obstructive uropathy happens when your urine flow reverses direction due to a blockage in a ureter.

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3

Pyelonephritis

Pyelonephritis is an inflammation of the kidney and upper urinary tract. Symptoms include flushed skin, back pain, fever, and nausea.

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4

Costochondritis (Tietze's Syndrome)

Costochondritis an inflammation of the cartilage in the rib cage. Learn about costochondritis symptoms, causes, diagnosis, and treatment.

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5

Polycystic Kidney Disease

Polycystic kidney disease (PKD) is an inherited kidney disorder. It causes fluid-filled cysts to form in the kidneys. PKD may impair kidney function and cause kidney failure. According to the University of Chicag...

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6

Urologic Diseases

Urologic diseases are a wide variety of conditions, all related to the processing and carrying of urine out of the body. They can affect people of all ages.

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7

Acute Appendicitis

Acute appendicitis is a painful inflammation of your appendix, a small sac connected to your large intestine. It is an urgent condition that must be addressed immediately. If you have appendicitis, your appendi...

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8

Acute Unilateral Obstructive Uropathy

Obstructive uropathy is a blockage that prevents urine from leaving your kidneys. When this condition develops suddenly and only affects one kidney, it’s called acute unilateral obstructive uropathy. The blockag...

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9

Bladder Infection

A bladder infection is a bacterial infection. It also may be called a urinary tract infection (UTI), which refers to infection anywhere in the urinary tract, including the bladder, kidneys, ureters, or urethra.

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10

Bladder Cancer

Bladder cancer occurs in the tissues of the bladder, which is the organ that holds urine. Fatigue, weight loss, painful or frequent urination, and abdominal or back pain are symptoms.

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11

Catheter Associated UTI (CAUTI)

A catheter-associated urinary tract infection (CAUTI) is one of the most common infections a person can contract in the hospital.

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12

Hydronephrosis

Hydronephrosis is a condition that typically occurs when one kidney becomes swollen due to the failure of normal drainage of urine from the kidney to the bladder. This swelling most commonly affects only one kidney, bu...

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13

Renal Cell Cancer

Renal cell carcinoma is the most common kind of kidney cancer found in adults. Often aggressive, it occurs when cancer cells grow uncontrollably in the lining of the tubules of the kidney, causing many possible symptoms.

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14

Hypercalcemia

Hypercalcemia is a condition in which you have too much calcium in your blood. Serious cases could cause symptoms like abdominal pain, nausea, constipation, and weakness.

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15

Hodgkin's Disease

Learn more about a type of blood cancer called Hodgkin's disease (HD), including its symptoms, causes, diagnosis, and treatments.

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16

Shingles

Shingles is an infection caused by the varicella-zoster virus, which is the same virus that causes chickenpox. Chickenpox can live on in your nervous tissues.

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17

Addisonian Crisis (Acute Adrenal Crisis)

This condition is considered a medical emergency. Urgent care may be required.

An Addisonian crisis occurs when levels of cortisol suddenly drop. Learn more about an Addisonian crisis, including symptoms, risk factors, and treatment.

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18

Transitional Cell Cancer (Malignant Neoplasm of Ureter)

The tube that connects the kidneys to the bladder is known as the ureter . Most healthy people have two kidneys and, therefor, two ureters. The top of each ureter is found in the middle of the kidney in an area known a...

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19

Non-Hodgkin’s Lymphoma

Non-Hodgkin lymphoma (NHL) is a cancer of the lymphatic system that occurs when tumors develop from the lymphocytes, which are a type of white blood cell.

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20

Transfusion Reactions

A transfusion reaction is a rare condition that occurs when a person receives a transfusion with blood that is not matched to their blood type. This may cause symptoms such as back pain, fever, fainting, or dizziness.

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This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.
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