Patients with chronic pharyngitis and spit with blood in the sputum, the specific reasons are as follows: 1, inflammatory factors: often related to chronic inflammatory diseases of the pharyngeal mucosa, the pharyngeal mucosa often shows chronic congestion and dryness, the local mucosa of the pharynx may occur mild rupture and a small amount of blood oozing, which can cause the symptoms of sputum with blood. 2, cough: some patients may have repeated coughing, which is easy to the 3. airway bleeding: the bloody secretions in sputum of some patients may also originate from the nasal cavity, sinuses, nasopharynx area, or appear in the trachea, bronchi, lungs and other lower respiratory tract areas, and further detailed examination is needed if necessary.