What are the causes of laryngeal click in normal persons?

Laryngeal clicks in normal persons can have several causes:

1. Normal Variation: Some individuals may have a naturally weak laryngeal closure, resulting in a soft clicking sound during swallowing or speaking. This is often considered a normal variation and does not require any medical intervention.

2. Tongue Tension: Excessive tension in the tongue muscles, particularly the base of the tongue, can cause the epiglottis to snap against the posterior pharyngeal wall, producing a clicking sound. This can occur due to factors like stress, anxiety, or certain speech patterns.

3. Muscle Coordination: Lack of proper coordination between the muscles involved in swallowing can lead to laryngeal clicks. This may be more noticeable during rapid or forceful swallowing.

4. Structural Abnormalities: In rare cases, anatomical abnormalities such as a bifid epiglottis or a high-arched palate can predispose individuals to laryngeal clicks.

5. Aging: As people age, the laryngeal muscles may lose some of their elasticity and coordination, making them more prone to producing clicks.

6. Vocal Strain: Excessive vocal strain, especially in singers or public speakers, can cause laryngeal clicks due to vocal fold fatigue and reduced muscle control.

7. Habits: Certain habits like drinking from a straw or sucking on candy can lead to increased air intake, which can accentuate laryngeal clicks.

8. Allergies and Irritants: Allergies or exposure to irritants like smoke or pollutants can cause swelling or inflammation in the throat, affecting the coordination of swallowing muscles and leading to clicks.

9. Gastroesophageal Reflux Disease (GERD): Chronic acid reflux can cause irritation and inflammation in the throat, leading to laryngeal clicks.

It's important to note that if laryngeal clicks are accompanied by difficulty swallowing, pain, or other abnormal symptoms, it's essential to consult a healthcare professional for further evaluation and management.