Lung speckled shadow is the result of imaging examination, which may be caused by pneumonia, or it may be a normal physiological phenomenon caused by patients who have suffered from tuberculosis. When patients do imaging tests, the result of pulmonary speckled shadow is usually caused by inflammation of the lungs, such as pneumonia, if the patient has no obvious discomfort symptoms and the speckled shadow is less than 5mm, usually do not need special symptoms, the patient should go to the hospital regularly for review. If symptoms such as cough, sputum and fever occur, patients should go to the hospital in time for treatment. In addition, when the patient has an imaging result of pulmonary speckled shadow, it may also be caused by the patient who has already suffered from tuberculosis, and the appearance of pulmonary speckled shadow indicates that the patient’s tuberculosis has been cured, and the pulmonary speckled shadow is the calcification phenomenon left behind by tuberculosis, which is a normal physiological phenomenon. When the patient has the phenomenon of pulmonary speckled shadow in the imaging examination, if there is no uncomfortable symptom, there is no need for special symptoms. If the patient has symptoms such as coughing, coughing up sputum, etc., he should consult a doctor in time and follow the doctor’s instructions for the next examination.