Coughing and smelling blood may be caused by laryngeal cancer, bronchial dilatation, tuberculosis and so on.
1. Laryngeal cancer: when the cells in the patient’s larynx have genetic mutation, resulting in abnormal proliferation of local cells, thus forming laryngeal cancer, when the cancer cells invade or stimulate the blood vessels in the larynx, causing rupture of local blood vessels, the symptom of coughing and smelling blood will appear.
2. Bronchial dilatation: when the patient suffers from bronchitis, cough and other uncomfortable symptoms will appear, resulting in abnormal dilatation of bronchial tubes and hemoptysis, which may cause coughing and smelling blood.
3. Tuberculosis: If the patient himself suffers from tuberculosis, coughing seriously, may lead to abnormal rupture of the bronchial mucosa bleeding, which will appear coughing and smelling bloody symptoms.
Should go to the hospital in time for relevant examination, clear cause, timely targeted treatment.