In medicine, laryngospasm's an uncontrolled/involuntary muscular contraction (spasm) of the laryngeal cords. The condition typically lasts less than 30 or 60 seconds, and causes a partial blocking of breathing in, while breathing out remains easier. It may be triggered when the vocal cords or the area of the trachea below the cords detects the entry of water, mucus, blood, or other substance. It's characterized by stridor and or retractions. Some people suffer from frequent laryngospasms, wheth… (More on Laryngospasm)