In [71]: df Out[71]: a b c 0 NaN 7.0 0 1 0.0 NaN 4 2 2.0 NaN 4 3 1.0 7.0 0 4 1.0 3.0 9 5 7.0 4.0 9 6 2.0 6.0 9 7 9.0 6.0 4 8 3.0 0.0 9 9 9.0 0.0 1 In [72]: df.isna().any() Out[72]: a True b True c False dtype: bool