The following diseases are not excluded when elderly people have frequent coughing and spitting symptoms: 1. pneumonia, patients with pneumonia can have coughing and sputum symptoms. 2. chronic obstructive pulmonary disease, the main clinical manifestation of which is coughing and coughing white sputum in the morning. 3. pulmonary tuberculosis, symptoms of coughing and sputum, accompanied by symptoms of tuberculosis poisoning such as low fever, weakness, night sweats and wasting. 4. malignant tumors of the lung, symptoms of coughing and sputum, accompanied by clinical manifestations such as chest pain, coughing blood, dyspnea and wasting. 5. The symptoms of cough and sputum are accompanied by chest pain, coughing up blood, dyspnea, wasting and other clinical manifestations. 5. Cardiac insufficiency, coughing and coughing up white foamy sputum, accompanied by anterior heart discomfort, anterior heart pain and swelling of lower limbs. When cough and sputum symptoms appear in the elderly, it is recommended to actively seek medical advice, improve relevant examinations, clarify the diagnosis, and take targeted treatment according to the diagnosis.