Lung oligofibroplastic foci, mainly refers to proliferative foci caused by the presence of fibrous tissue proliferation in the lungs. Pulmonary oligofibrotic proliferative foci is a professional term for lung imaging, in which proliferative changes in the lungs can be observed through imaging films. The cause of the lesions is mostly due to the formation of fibrotic tissue proliferation locally after the cure of infectious diseases in the lungs, which is most commonly seen in chronic pneumonia, old tuberculosis, and in some populations, it may be due to the pathologic changes caused by lung space-occupying diseases or pulmonary fibrosis. If after lung CT, the presence of pulmonary oligofibrotic proliferative foci, most of them represent old lesions, which usually do not lead to patients with relevant clinical manifestations, lung function will not be significantly reduced, and the impact is usually small, if the presence of pulmonary oligofibrotic proliferative foci in addition to the presence of patchy shadows, nodules, etc., it is necessary to be vigilant for the presence of tuberculosis lesions. If the presence of pulmonary oligofibrosis, it is recommended to consult a doctor in a timely manner, and follow the doctor’s instructions for symptomatic intervention to avoid further development of the disease.