Benign pulmonary ground-glass nodules may also grow slowly. In benign pulmonary ground-glass nodules, if poorly controlled by treatment, such ground-glass nodules can enlarge, but the enlargement is often accompanied by the appearance of other features of the imaging of the disease, such as thin-walled cavities, wormlike cavities, crescent signs, halo signs, and satellite lesions. Generally, benign pulmonary ground-glass nodules are caused by lung infections, tuberculosis, fungal infections, allergic pneumonitis, etc. Symptomatic treatment should be actively carried out after diagnosis to avoid the enlargement of the nodules. For example, in the case of tuberculous ground-glass nodules, anti-tuberculosis treatment is needed, and the duration of anti-tuberculosis treatment depends on the speed of absorption of tuberculous nodules, usually not less than one month. In conclusion, if benign pulmonary ground-glass nodules appear to increase in size, you should consult a doctor in time to find out the cause and treat the cause.