How to cite this article: S. Fareed Ul Hameed, S. Habeeb Mohammed, P. Karuppasamy. Evaluation of peripheral lower limb insufficiency among patients with diabetes mellitus using doppler ultrasound -an prospective study. International Journal of Contemporary Medicine Surgery and Radiology. 2020;5(1):A1-A5. Results: The most common artery involvement was found to be dorsapaedalis artery in 26% of the cases followed by proximal femoral and distal femoral in 18% of the cases whereas there were 12% cases with popliteal artery and distal artery branches involvement. The most common site of lesion involved was proximal femoral artery and dorsapaedalis artery seen in 26% of the cases (both) whereas distal femoral artery (DFA) was found in 10% of the cases, poplitial artery (PA) in 18% of the cases followed by posterior tibial artery (PTA) and anterior tibial artery (ATA) in 8% and 12% of the cases respectively. Conclusion: Peripheral vascular insufficiency was a significant finding in patients having diabetes for 1-10 years. The dorsalispaedis artery was the commonest site of involvement. The normal Doppler study virtually rules out a haemodynamically significant lesion and helps to prevent unnecessary intervention.