Double lower lung texture increase belongs to the imaging term, it may be the physiological reason, or it may be the pathologic factors, such as chronic bronchitis, bronchial dilatation, need to treat the cause. 1. Physiological factors: for special people, such as pregnant women, the elderly, obese people, etc., during the examination process are prone to pulmonary texture increased imaging changes, do not need to use drugs to deal with. 2. Pathologic factors: (1) Chronic bronchitis is prone to pulmonary texture thickening, need to choose the treatment program according to the condition, such as in the remission period to quit smoking, rehabilitation and exercise and other general supportive treatment, acute exacerbation with evidence of bacterial infection can be selected anti-infective drugs, such as amoxicillin, levofloxacin, etc., used in accordance with the doctor’s instructions, to avoid the adverse reactions of the drug. (2) Bronchodilatation: when there are signs of acute infection such as increased sputum volume and its purulent component, anti-infective drugs such as ampicillin/sulbactam and amoxicillin/clavulanic acid need to be applied. Double lower lung texture increase test results alone can not accurately determine the cause, but also need to be combined with other test results in order to make an accurate judgment, it is recommended to clarify the cause of the disease under the guidance of a doctor.