Is a right kidney size of 86mm × 40mm in a male considered normal?
During a physical examination, the right kidney was found to measure 86mm × 40mm. Recently, I occasionally experience mild lower back pain, and I'm wondering whether these measurements are normal and if there might be something wrong with my kidney.
Doctor's answer (1)
In general, a male's right kidney measuring 86mm × 40mm may be considered normal, although abnormalities are also possible.
According to general reference values for kidney size, adult kidneys are approximately 100mm to 120mm in length, 50mm to 60mm in width, and 30mm to 40mm in thickness. Therefore, the length of this male's right kidney appears slightly shorter while its thickness falls within the normal range.
However, kidney size can be influenced by multiple factors, including age, height, weight, and race. Additionally, the morphology and structure of the kidney are equally important, and size alone cannot fully determine kidney health. If the kidney's shape is normal without significant signs of atrophy, enlargement, or deformation, and its function remains normal with proper urine production and excretion, then even if its size slightly deviates from the general reference values, it can still be considered normal.
In daily life, it is recommended that men maintain healthy lifestyle habits, such as quitting smoking, limiting alcohol consumption, maintaining regular sleep patterns, and engaging in moderate exercise, all of which contribute to maintaining kidney health.
