Chlyamdia is a serious STD that is often left untreated. "This disease left untreated can damage reproductive damage and infertility in many of the 3 million to 4 million American who get it each year. Chlamydia's consequences can be devastating" (Nordenberg 1).Routine chlamydia screening is necessary to prevent harm to young adolescents and others who may not be aware that they have this sexually transmitted disease (STD). "The sexually transmitted disease chlamydia usually comes with no telltale symptoms, so most people don't even know when they are infected" (Nordenberg 1). If people do not know they have a disease they will not get treated. Approximately four million cases of chlamydia are reported each year.