Increased and blurred texture in both lungs is a special term used to describe the texture pattern of both lungs during imaging CT or X-ray examinations, referring to the increased and blurred texture of both lungs compared to the normal texture, which should be specifically analyzed in conjunction with clinical symptoms at this time. This is because increased and blurred double lung texture may be seen in physiological and pathological conditions: 1. In physiological conditions, most of the above imaging changes are seen in elderly or obese patients, so if the patient does not have symptoms such as cough, sputum, shortness of breath, etc., it can be left untreated and observed regularly. 2. If the patient has cough, sputum, shortness of breath, fever and other symptoms, it should be considered as acute bronchitis, which should be combined with blood routine and C-reactive protein examination for anti-infection treatment.