The location of the vocal cords is in the middle of the laryngeal cavity and consists of the vocal muscles, vocal ligaments and mucous membranes. The vocal cords are located in the middle of the laryngeal cavity and are the main structures for vocalization. The vocal cords are composed of the left and right vocal folds, which connect to the trachea. The anatomy of the vocal folds consists of three parts: the vocal cord muscle, the vocal cord ligament, and the mucosa, of which the lamina propria of the vocal folds is a dense connective tissue, with strong elastic fibers and transverse striated muscle at the edges of the folds. The sagittal fissure between the two vocal folds is the vocal fissure. When the vocal folds are vocalized, the vocal folds on both sides are stretched and the vocal folds are narrowed. The airflow from the trachea and lungs constantly impacts the vocal folds, which in turn causes vibration and vocalization. The vocal cords are susceptible to external influences that may cause abnormal behavior or diseases, such as smoking and drinking, eating spicy and irritating foods, and inhaling chemical or toxic gases, all of which can cause hoarseness, loss of voice and other symptoms. Common diseases of the vocal cords include vocal polyps, vocal cord paralysis, vocal cord inflammation, and vocal cord nodules. When the vocal cords appear abnormal manifestations need to go to the hospital in time for examination and treatment, so as not to delay the condition.