Background: The kidneys are important for maintaining hemostasis, they control the balance of water (fluid) concentrationos and long-term waste excretion in response to changes in homeostatic needs. Blood urea nitrogen (BUN), serum creatinine, and other compounds serve as biochemical markers evaluating renal function; however morphological features are also useful parameters reflecting the health of the kidney in particular its size. Aims And Objectives: To evaluate the relationship of urea/creatinine levels with kidney size in patients undergoing abdominal imaging Methods 1st January,208 and 31 Decamber,2013 Saidu Group Of Teaching Hospitals Swat.We recorded clinical data, including demographic details (age and sex), comorbidities. Activities include measurements of kidney size, biochemical analyses and correlation co-efficients & multivariate regression. Results: The analysis showed a positive correlation of kidney size (especially volume) with urea/creatinine levels and thus possibly predict implications for assessment of renal function. In the analysis, which had an exploratory value and included 310 patients in a retrospective pathway, there was significant positive association between kidney size (volume) with values of urea (r = 0.32; p <.001) as well creatinine levels(r=0.28,p<0001). Increased creatinine and decreased kidney size measurements in diabetes mellitus (DM) and hypertension (HTN) suggested a clinical relevance of renal outcome. They might also emphasize the importance of kidney length for assessing renal health and tailoring patient management strategies.