One-loop corrections to νµe→νµe, νµe→νµe and νµe→µνe Scatterings are calculated analytically in the Weinberg-Salam theory. The on-mass-shell renormalization procedure is employed. We find the corrections are considerably large. It is shown that our results are completely consistent with those of similar calculations by other groups in a different renormalization scheme in spite of seeming disagreement.