There are many diseases that cause coughing and coughing white foamy sputum, mainly divided into the following categories: i. respiratory-related diseases, such as upper respiratory tract infection, acute bronchitis, pneumonia, chronic obstructive pulmonary disease, bronchiectasis, tuberculosis, lung tumor, cough variant asthma, acute sinusitis, pharyngitis, etc.; ii. cardiovascular diseases, such as left heart failure, coronary heart disease, rheumatic heart disease, alcoholic heart disease, etc.; iii. Drug-induced, such as captopril, etc.; iv. Gastroesophageal reflux. All of the above diseases lead to coughing and coughing white foamy sputum. If patients have coughing and coughing sputum and oral cough suppressants are not effective, it is recommended to actively seek medical advice to improve relevant examinations, clarify the diagnosis and do targeted treatment.