Thyroid nodules are very common. B-Mode Sonography is the most sensitive method for diagnosis of thyroid nodules. This method is often insufficient for characterizing the nature of the lesion .The purpose of this study was to evaluate the correlation between various songraphic and doppler features of thyroid nodules and their risk of malignancy. In this study, 103 cases were included from which 85 cases were benign and 18 cases were malignant. The cases were subjected to complete U/S and Doppler examination and U/S guided FNAC.