Pulmonary ascites is fluid in the lungs caused by lung lesions. The cause of pulmonary ascites should be determined first. Pulmonary ascites may be caused by inflammation, heart failure, tuberculosis, and tumors can cause pulmonary ascites, requiring patients to undergo a comprehensive examination to determine the cause of the disease and treat it symptomatically. Regardless of the cause of pulmonary ascites, once the disease occurs, you should immediately go to the hospital to receive an examination and actively treat it under the guidance of a doctor, the greater the possibility of recovery from early treatment. Patients do not need to be overly nervous, and it is also important to relax your mind.