Throat inflammation and blood in sputum_What is the reason for blood in sputum?

When you cough and there is blood in your sputum, you generally need to distinguish whether it is the blood in the nasal cavity or the trachea. If it is blood from the trachea, it is usually engraved. When you cough and there is blood in your sputum, you must pay attention to it. If you do not pay attention, it can easily worsen the condition and may affect your health. You must go to the hospital for examination and treatment in time.

What is blood in sputum?

1. Climate and seasonal factors

Winter is the season when bronchial and asthma diseases are prevalent and relapse for many people. This is because the cold causes the blood vessels in the pharyngeal mucosa to contract, and the number of phagocytes decreases, thereby reducing local resistance. Moreover, the dry climate in winter will affect the secretion of pharyngeal mucus and ciliary motility, reduce the cleaning and humidifying effects of the air, and directly cause irritation and damage to the pharyngeal mucosa.

2. Viral infection

Part of the reason is due to viral infection, such as Coxsackie virus, adenovirus, parainfluenza virus, etc., which are all causes of viral infection.

3. Bacterial infection

Patients with blood in sputum must pay attention. The cause of your illness is likely to be bacterial infection, such as streptococci, staphylococci and pneumococcus. Among them, group A group B streptococcus infection is the most serious and can lead to purulent lesions in distant organs, which is called acute septic pharyngitis. If the cough and blood in the sputum are caused by bacterial infection, you should go to the hospital for treatment as soon as possible to prevent it from further developing.

4. Pathogenic microorganisms

Pathogenic microorganisms include bacteria, viruses, spirochetes, rickettsiae, etc., which can cause acute pharyngitis and other diseases in our body. Pathogenic microorganisms can come directly from the air and diet, or indirectly from blood circulation and lymphatic circulation.

5. Physical or chemical stimulation

The reason for coughing up blood in sputum may also be due to talking too much, or liking to eat spicy and hot foods, or excessive smoking and drinking. In addition, air pollution such as chemical gases and dust can damage the pharyngeal mucosal epithelium and glands, destroy the local defense system and cause blood in sputum.

6. Disease factors:

Common diseases that cause blood in sputum include:

(1) Bronchial diseases, such as bronchiectasis, chronic tracheitis, bronchial lung cancer, etc.

(2) Lung diseases, such as tuberculosis, pneumonia, etc.

(3) Cardiovascular diseases, such as pulmonary congestion caused by mitral valve stenosis.

(4) Blood diseases and certain acute infectious diseases.