Thickening and blurring of the texture of both lungs actually means that the lung texture contains the hilar, peripheral blood vessels, nerves, as well as soft tissues and part of the bronchial tubes, lymphatic and blood vessels of both lungs, which are congested, edematous and even exuding inflammatory secretions to varying degrees. The pathologic changes are detected by imaging studies, including bilateral lung X-rays, bilateral lung CT, and even MRI and enhanced CT scans. Inflammatory reactions are generally more common in the clinic and are caused by infections such as bacteria, viruses, mycoplasma, chlamydia, and mycobacterium tuberculosis. In most cases, it is seen in some chronic inflammation, so clinically, in addition to imaging examination, if necessary, we can also take the sputum coughed up from the respiratory tract to do the culture of pathogens, and even drug sensitivity test to clarify the cause and condition of timely treatment.