19. Lower Back Pain: An Unusual but Possible Symptom of Kidney Disease

Lower back pain can be a symptom of kidney disease, particularly if the pain is located near the area where the kidneys are situated (the flank area). This pain may be due to kidney inflammation, infection, or kidney stones.
The kidneys are located in the lower back, just above the waist, and are surrounded by muscles and tissues. When the kidneys are damaged, they may become swollen or inflamed, which can cause pain in the lower back. This pain can be dull or sharp and may be constant or intermittent. It can also be accompanied by other symptoms such as fever, nausea, and vomiting.
If you are experiencing lower back pain and any of these other symptoms, it is important to see a doctor for a proper diagnosis. Your doctor may perform a physical examination, ask about your medical history, and order a series of tests to determine the cause of your symptoms. These tests may include a blood test, urine test, imaging tests such as an X-ray, CT scan, or MRI, or a biopsy of the kidney.
Lower back pain is not a typical symptom of kidney disease, but it is possible. If you are experiencing lower back pain, along with other symptoms of kidney disease, it is important to see a doctor for a proper diagnosis and treatment. Early diagnosis and treatment can help slow the progression of the disease and reduce the risk of serious complications. (19)