Sinusitis with blood is usually caused by prolonged purulent secretion stimulation, but also may be caused by the combination of nasal swelling, need to improve the examination to confirm the diagnosis. Sinusitis with blood, need to improve the sinus CT, nasal endoscopy and other checks, usually due to purulent secretion stimulation, resulting in inflammatory reaction of the nasal mucosa, resulting in ulceration of the nasal mucosa, vesicles, local capillary rupture, resulting in sinusitis with blood phenomenon. Sinusitis if combined with nasal masses, such as nasal polyps, papillomas, malignant tumors, etc., will also lead to the phenomenon of sinusitis with blood, and at the same time the phenomenon of nasal congestion, runny nose will become more and more serious. Sinusitis with blood has many reasons, after the appearance of symptoms, it is recommended to go to the hospital in a timely manner to improve the examination, in accordance with the doctor’s instructions to take standardized treatment, do not ignore the symptoms, take it lightly, so as not to lead to adverse consequences.