A little exudate from the lower lobes of both lungs may be the result of a CT scan suggesting inflammation of the lungs due to a bilateral lung infection. 1. Etiology: bilateral lung infection may be due to bacteria, viruses, mycoplasma, chlamydia and other pathogenic microorganisms infecting the lungs and causing inflammation, a little exudate fluid and inflammatory cells, filling the alveoli to form a substantial lesion, generally seen in the exudate disease are plasmacytoid inflammation, suppurative inflammation, fibrinogenetic inflammation and so on. 2. Treatment: if the lower lobe of both lungs little exudation is caused by bacterial infection, can follow the doctor’s instructions to use amoxicillin, cefuroxime and other drugs for treatment, if caused by viruses can follow the doctor’s instructions to use ribavirin, acyclovir and other drugs for treatment, mycoplasma, chlamydia, and other causes of the lower lobe of both lungs little exudation can be through the roxithromycin, ciprofloxacin and other drugs for treatment. Therefore, patients with a little exudation from the lower lobes of both lungs should go to the hospital as soon as possible to find out the cause of the disease, and actively cooperate with doctors for treatment after diagnosis.