Swelling of the vocal cords prevents them from coming together properly which makes a change in the voice. Acute laryngitis usually occurs due to swelling of the vocal cords from a common cold, upper respiratory tract viral infection, or irritation caused by excessive voice use such as screaming at a sporting event or rock concert.
Yes, as many as 90 percent of head and neck cancers arise after prolonged exposure to specific factors. Use of tobacco (cigarettes, cigars, chewing tobacco or snuff) and alcoholic beverages are closely linked with cancers of the mouth, throat, voice box, and tongue. (In adults who neither smoke nor drink, cancers of the mouth and throat are nearly nonexistent.) Prolonged exposure to sunlight is linked with cancer of the lip and is also an established major cause of skin cancer.