Sexually transmitted diseases infect millions of people a year. Some of the commonly known sexually transmitted diseases are herpes, syphillis, HIV, AIDS, genital warts, and gonorrhea. Some of these diseases are fatal, others can be cured with antibiotics. All of these are dangerous, but the most common sexually transmitted disease is a disease that isn't as well known. This disease is called chlamydia. Chlamydia is a disease that is infecting young adults all over the country. This disease is of great concern for individuals in high school and those in college. This disease is the leading cause of sterility. Chlamydia is a sexually transmitted infection caused by a bacteria called Chlamydia trachomatis. It primarily infects cells in the tube which carrries urine from the bladder to the outside of the body, and also the neck of the uterus. Chlamydia also infects the cells in the rectum and eyes. Chlamydia is the number one sexually transmitted disease in the United States, rates are highest in the West and Midwest. Missouri has a chlamydia rate that is much higher than the national average. Health economists estimate that the chlamydial infections and the other problems they cause cost Americans more than two billion dollars a year. Over four million people become infected with chlamydia each year. New cases of chlamydia are about four times more common than new cases of genital herpes and genital warts combined. Chlamydia is often dubbed the "silent epidemic" because it is so prevalent, but so unheard of. Chlamydia is not as well known as other sexually transmitted diseases like gonorrhea or syphilis. Chlamydia infection is greatest among young adults and teenagers, especially in sexually active women less than twenty years of age. One of the reasons that chlamydia is so prevalent is because over 70% of women who are infected don't know they are infected because they lack signs or symptoms. About 50% of men lack s...