What are the symptoms of kidney stones?

Diana Meeks
Diana Meeks on behalf of Sigma Nursing
Family Practitioner

Kidney stones can cause pain in the lower abdomen, especially the lower back, sides and groin area. Other symptoms include blood in the urine, vomiting or nausea, painful urination and an urge to urinate frequently. You might also experience chills and a fever if your stones are caused by an infection.

Usually a person with a kidney stone experiences dull and achy back pain, though the pain can sometimes be sharp and intense. Symptoms of a kidney stone also include blood in urine, nausea, fatigue and fever.

This answer provided for NATA by the Southern Connecticut State University Athletic Training Education Program.

Some kidney stones are as small as a grain of sand. Others are as large as a pebble, and a few are as large as a golf ball. As a general rule, the larger the stone, the more noticeable the symptoms.

Symptoms of kidney stones could be one or more of the following:

  • severe pain on either side of your lower back
  • more vague pain, or a stomach ache that doesn't go away
  • blood in the urine
  • nausea or vomiting
  • fever and chills
  • urine that smells bad or looks cloudy

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.