Spitting out sticky blood clots in the throat may be hemorrhagic necrotizing nasal polyps, inverted papilloma, dry pharyngolaryngitis, and lung malignant tumors. 1. Hemorrhagic necrotizing nasal polyps, inverted papilloma: nasal sinus mass growth process caused by bleeding in the nasal cavity, blood accumulation to form clots, clots will flow from the back of the nostrils to the oral cavity or backflow into the pharynx and spit out. If accompanied by abnormal nasal discomfort, it is necessary to promptly identify the cause, determine the location of the lesion, if caused by polyps or tumors can be treated by surgical resection. 2. Dry pharyngolaryngitis: long-term congestion and dryness of the throat, causing coughing, stimulating the mucous membrane to rupture and bleed, forming blood clots. Patients should avoid contact with toxic, harmful and irritating gases on a daily basis, and abstain from spicy and stimulating, too cold and too hot food on the diet. Room can put humidifier to help reduce symptoms. 3. Lung malignant tumor: the tumor invades the pharyngeal tissues, causing the symptoms of blood in sputum, hemoptysis, and the phenomenon of spitting out sticky blood clots in the throat. Patients should be diagnosed early and treated through surgery, chemotherapy and radiotherapy. The appearance of viscous blood clots spit out of the throat, it is recommended to actively seek medical attention to identify the cause, follow the doctor’s instructions to standardize the use of drugs and treatment.