Calcified lung dots usually do not disappear because they are a type of old lesion. These old lesions are old lung lesions left over from some original benign lesions in the lung tissue, including inflammation of the lung or tuberculosis of the lung. Because calcium salt deposits appear in the lung tissue, they manifest as calcified lung spots, and the changes in the calcium salt deposits are not absorbed, and most of them remain permanently unless they are surgically removed before they may disappear. Of course, calcified lung spots do not have any effect on the human body until they disappear, they do not cause clinical symptoms, and they are not harmful to the human body, so in the vast majority of cases, calcified lung spots do not need to be treated.