In most cases, small nodules in the lungs do not disappear. Some benign nodules may disappear with the treatment of a doctor. If the lung nodules are caused by some inflammatory infections, some of them may disappear with the treatment of antibiotics. However, there are some nodules that do not disappear and need to be followed up and reviewed regularly. Although most small nodules in the lungs are benign and do not require special treatment, the possibility of tumor transformation cannot be ruled out, and if necessary, a chest CT examination should be done at the hospital to clarify the diagnosis and provide active treatment. This nodule may not have much effect in the early stage, but in the advanced stage, it may compress the lung tissue and cause coughing, chest tightness and shortness of breath, which is more dangerous and can be treated by surgery if necessary. In daily life, special attention should be paid to the maintenance of the lungs and smoking is strictly forbidden because frequent smoking can cause some stimulation to the lungs, which can lead to the formation of pneumonia. Usually, smokers have a much higher chance of getting lung cancer than normal people.