Examination methods for pharyngitis

The main examination methods for pharyngitis include visual examination of the throat, laryngoscopy, blood routine examination, pathogen examination, and imaging examination. Doctors will select the most suitable examination items based on the patient's specific symptoms and signs to clarify the diagnosis and evaluate the condition.

1. Pharyngeal visual examination:

This is the most basic and primary examination method. The doctor will use a tongue depressor to gently press the front two-thirds of the patient's tongue and observe the mucosal state of the mouth and throat under sufficient light. During the examination, special attention will be paid to whether the pharyngeal mucosa is congested or swollen, whether the lymphoid follicles on the posterior pharyngeal wall are enlarged or enlarged, and whether the tonsils are swollen, congested, or have purulent secretions. For acute pharyngitis, the pharyngeal mucosa appears bright red; Chronic pharyngitis is characterized by dark red, dry or atrophic mucosa. This examination can preliminarily determine the presence and type of inflammation.

2. laryngoscopy examination:

When the symptoms of the throat are complex or there is suspicion that the lesion has spread down to the throat, the doctor will recommend a laryngoscopy examination. This includes indirect laryngoscopes or electronic laryngoscopes. During the examination, the doctor can clearly observe structures in the throat such as the epiglottis, arytenoid cartilage, and vocal cords. For patients with pharyngitis, this examination is mainly used to rule out the presence of new organisms, vocal cord paralysis, or other organic lesions in the throat. It can also evaluate the impact of pharyngitis on the throat, such as congestion or edema of the laryngeal mucosa.

3. Blood routine examination:

By extracting venous blood for blood routine analysis, the nature of pharyngeal inflammation can be determined. If the white blood cell count and neutrophil ratio increase, it usually indicates the presence of bacterial infection, such as acute suppurative tonsillitis. An increase in the proportion of lymphocytes is more common in viral pharyngitis. This examination can provide objective evidence for doctors to determine whether antibiotics are needed, avoid the misuse of antibiotics, and also assess the severity of infections.

4. Pathogen examination:

For recurrent or persistent pharyngitis, doctors may take secretions from the throat for pathogen examination. Common methods include throat swab culture and drug sensitivity testing. Through cultivation, it is possible to determine whether the pathogen causing infection is bacteria (such as Group A Streptococcus pyogenes) or a virus, and drug susceptibility testing can guide doctors in selecting the most effective antibacterial drugs. In addition, for suspected special infections such as fungal pharyngitis, smear microscopy can be performed. This examination helps achieve precise treatment.

5. Imaging examination:

When pharyngitis is accompanied by a neck mass, difficulty swallowing, or suspicion of deep infections such as retropharyngeal abscess or parapharyngeal abscess, doctors will recommend imaging examinations such as neck X-ray or CT scan. These examinations can clearly display the soft tissue structure around the pharynx, assess whether inflammation has spread to deep tissues, and whether abscesses have formed. For chronic pharyngitis that persists for a long time, imaging examination can also help rule out the presence of space occupying lesions in the nasopharynx or larynx, which is an important diagnostic tool. After completing the above examinations, patients should actively cooperate with the doctor's diagnosis results for treatment. In daily life, it is recommended to maintain oral hygiene, rinse mouth with warm salt water, avoid smoking, drinking alcohol, and consuming spicy and irritating foods, and drink plenty of warm water to keep the throat moist. If diagnosed with allergic pharyngitis, attention should also be paid to avoiding allergens. Regular sleep and improving physical fitness are equally important for preventing the recurrence of pharyngitis.