Acute pharyngitis triggered by bacterial infection may cause pus and sputum. Chronic pharyngitis caused by allergy and rhinitis usually has no pus and sputum, but sticky white sputum. Infection with streptococcus, staphylococcus, pneumococcus, etc. can cause acute pharyngitis, so that the mucous membrane of the throat is congested and edematous. As leukocytes tend to gather, mixed with necrotic tissue and bacterial residues, while the pharyngeal mucosa hyperplasia, surface drying so that the water evaporation, which leads to the formation of pus sputum. Chronic pharyngitis caused by excessive smoking and alcohol, dental caries, allergies, gastroesophageal reflux disease, rhinitis, etc., the pharynx manifests itself as congestion and swelling, mucus secretion hypersecretion, but the secretion is usually not pus sputum, it is viscous white sputum. It is recommended to consult a doctor in time to find out the cause of pharyngeal pus and phlegm, and after clarifying the cause of the disease, actively cooperate with the doctor to formulate a treatment plan according to the individual’s situation.