Acute pharyngitis is an acute infection of the pharyngeal mucosa caused by bacteria and viruses and is a part of upper respiratory tract infection.

1. Acute viral pharyngitis:

Mostly caused by rhinovirus, adenovirus, influenza virus, parainfluenza virus, enterovirus, respiratory syncytial virus, etc. The clinical features are itching and burning sensation in the pharynx, and the pain is neither lasting nor prominent. When there is pain when swallowing, it often indicates streptococcal infection.

2. Bacterial pharyngitis:

Mostly caused by hemolytic streptococci, followed by Haemophilus influenzae, pneumococci, staphylococci, etc. The onset is sudden, with obvious sore throat, chills, and fever. Examination shows obvious congestion in the pharynx, or accompanied by enlarged tonsils.

3. Chronic pharyngitis is a chronic inflammation of the pharyngeal mucosa. The main causes are the repeated effects of acute pharyngitis, stimulation of inflammatory secretions in the nasal sinuses and nasopharynx, the direct spread of chronic inflammation of the tonsils, and excessive tobacco and alcohol consumption. , dust, harmful gases, etc. and like to eat irritating food, etc. In addition, patients with certain systemic diseases, such as anemia, tracheal diseases, liver and kidney diseases, etc. are also susceptible to this disease.

In chronic pharyngitis, sometimes bacteria and viruses can stay locally and become chronic infection lesions. However, antibiotic treatment is generally not recommended except for those with acute attacks.