There is no fixed value for how much a benign lung nodule will grow in a year, it is determined by the treatment of the primary disease.
There is no such thing as a fixed value for the one-year growth of benign lung nodules. Different diseases determine the specific growth of lung nodules. If the primary disease is well controlled, such as pneumonia, tuberculosis, etc., and is treated in time, the nodules may not grow in a year, or may even shrink or absorb gradually.
However, if the primary disease is not well controlled, such as tuberculosis, and is not treated regularly, the lung nodule may grow significantly, up to double the size of the primary lesion or even more, with no fixed value, and there is no authoritative data to provide such a value.
Therefore, there is no fixed value for the growth of benign lung nodules, and it is recommended to seek medical advice.