This document provides information on chronic laryngitis, including: 1. It defines the larynx and its structures such as cartilages and muscles. Chronic laryngitis is an inflammatory process that causes irreversible damage to the larynx mucosa. 2. Common causes include infections, voice abuse, allergies, and environmental factors. Signs and symptoms include hoarse voice, chronic cough, and difficulty swallowing. 3. Diagnosis involves medical history, physical exam, imaging, and biopsy. Treatment focuses on identifying and treating the underlying cause, with measures like voice rest, steam inhalation, and surgery in severe cases.