Is it normal for the left kidney to be 91×41 mm and the right kidney to be 95×45 mm?

Dec 03, 2024 Source: Cainiu Health
Dr. Yang Guang
Introduction
The length of a normal adult kidney is approximately 100-120 mm, the width approximately 50-70 mm, and the thickness approximately 30-50 mm. If imaging examinations such as color Doppler ultrasound or CT are used to evaluate kidney size, kidneys are generally considered healthy if their size falls within the standard range and there are no accompanying abnormal symptoms or indicators.

In general, kidney sizes of 91×41mm for the left kidney and 95×45mm for the right kidney are considered normal. The detailed analysis is as follows:

The normal adult kidney measures approximately 100-120mm in length, 50-70mm in width, and 30-50mm in thickness. If kidney size is evaluated using imaging examinations such as color Doppler ultrasound or CT scan, and the size falls within the standard range without accompanying other abnormal symptoms or indicators, the kidney is usually considered healthy.

Although there is a slight difference between the sizes of 91×41mm for the left kidney and 95×45mm for the right kidney, both measurements fall within the reference range for normal kidney size. Therefore, regarding size alone, these kidneys are considered to be of normal size.

However, it should be noted that kidney health not only depends on its size but also relates to multiple factors such as its function, morphology, and blood supply. Even if the kidney size is within the normal range, if other abnormal symptoms or indicators appear, such as flank pain, hematuria, proteinuria, or abnormal kidney function, further examination and evaluation of kidney health are required.

Therefore, kidney sizes of 91×41mm for the left kidney and 95×45mm for the right kidney are considered normal under normal circumstances, but other clinical information must be integrated to comprehensively assess kidney health. If any concerns or symptoms arise, it is recommended to seek timely medical attention and undergo examination and evaluation by a qualified physician.