Fibrous streak foci in both lungs may be caused by incomplete absorption after healing of pneumonia, tuberculosis and lung abscess. Lung imaging manifested as fibrous streak foci, usually as a result of lung tissue injury, fibrous tissue proliferation replacement, bilateral lung lesions range of small, will not cause clinical symptoms, and does not affect lung function, generally do not need treatment. Pneumonia, lung abscess and other lung infections healed by anti-infective treatment, the lung lesions are wrapped in fibers to repair and proliferate, due to incomplete absorption of the legacy of fibrous streak foci. After standardized anti-tuberculosis treatment, the scar left behind by the absorption of the lesion often appears, and may be accompanied by calcified foci, which is a manifestation of the healing of the disease. It is advisable to consult your doctor and have regular follow-ups to monitor your condition if you develop fibrous streaks in both lungs.