Your Kidney is a Pain in the Back

Are You Exacerbating A Kidney Condition?


For a nagging backache, you take Non-Steroidal Anti-Inflammatory Drugs (NSAIDs) without hesitation. If there is no relief, you up the dosage—repeatedly. Unable to dull the pain makes you irascible. Though ill-advised, you might light a cigarette to calm your nerves. This dries your throat. So you grab a sugary soda, which happens to go well with a large bag of barbecue potato chips.

The pain won’t go away. So you visit a doctor who takes a CT scan with contrast dye. Your doctor evaluates your symptoms and medical history to identify the source of your back pain.

Symptoms of Kidney Problems

After reviewing the radiologist report, your primary physician might refer you to a nephrologist. Kidneys produce urine, so when the kidney function is failing, urination changes. How is this apparent?

  • Do you have to get up at night to urinate frequently (4–5 times)?
  • Is your urine foamy or bubbly?
  • Has the volume of your urine become pale and in greater volume?
  • Do you have dark-colored urine less often, or in smaller amounts than usual?
  • Does your urine contain blood?
  • Do you feel pressure or have difficulty urinating?
Urine Color Chart
1Too much water
2Sufficient fluids
3Drink more water
5Possible cramps and heat-related problems
6Health risk!Drink more water
7Health risk!
8Health risk!
9Health risk!
10Health risk!Blood in urine

Along with muscle swelling and pain, brown urine is a symptom of an extremely rare (22:10000) emergency medical condition called rhabdomyolysis. Haematuria (blood in the urine) along with left flank pain that radiates to the groin are symptoms of another emergency: abdominal aortic aneurysm. Urine does not always need to be very dark to contain blood.

Because kidneys are on the sides of your lower back, it is easy to mistake pain in that area as muscle spasms. Astute urology physicians probe further during their examination.

Kidney is A Pain in the Back

Normally functioning as a filter, failing kidneys are ineffective at removing extra fluid and wastes. This can swell your face, legs, ankles, feet, and hands. Patients’ kidneys stop working properly in stage 4, losing ability to excrete excess fluid from the body. This can lead to fluid and sodium retention.

Healthy kidneys make a hormone called erythro­poietin (EPO), which signals your body to make oxygen-carrying red blood cells. As the kidneys fail, your muscles and brain tire rapidly. Your red blood cells decrease. This state called anemia can also cause you to feel cold, lead to dizziness and memory problems.

A buildup of wastes in the blood (called uremia) can make food taste differently and give you bad breath. This buildup also causes nausea and vomiting as your body attempts to remove toxins.


What causes kidney problems? Based on the article introduction, the answers sound familiar:

  • Too many NSAID pain relievers
  • Cigarette smoking
  • Too much sugar
  • Overabundance of sodium
  • Contrast dyes in some CT scans
  • Not drinking enough daily water


It should seem obvious now. Protecting your kidneys involves the following behaviors:

  • Eat a diet low in fat and salt
  • Exercise most days of the week
  • Have regular doctor checkups
  • Avoid tobacco
  • Limit alcohol
  • Drink sufficient amount of water (2–3 liters daily)
  • Don’t hold full bladder too long

Your back problem could be due to kidneys retaining water in response to a lack of sufficient intake. So drink more water—not coffee or colas. There are many types of kidney disorders—from kidney stones to cancer.

Brown urine in toilet bowl

Kidneys are resilient organs; take care of them and they will serve you well for a long time. Address concerns about possible kidney problems with your primary physician or a nephrologist, who specializes in kidney disorders.

To support the writing of useful articles about urology, ClinicalPosters sells human anatomy posters, scientific posters and other products online. You can donate or leave an encourag­ing comment to keep the work going. Stay safe and A Bit More Healthy.

This updated article originally published January 21, 2016.

  1. 15 Symptoms of Kidney Disease. Retrieved 10 Aug 2021
  2. 5 Surprising Ways You Could Be Damaging Your Kidneys. Retrieved 10 Aug 2021
  3. Dangers of Dehydration and The Importance of Kidney Cleansing. Retrieved 10 Aug 2021
  4. Causes and Diet for Swelling in Stage 4 Chronic Kidney Disease. Retrieved 10 Aug 2021
  5. Kidney. Retrieved 10 Aug 2021

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