Having a sex partner who is not treated, so
Having a new sex partner, or more than one sex
partner, who spreads an infection.
Receiving medical treatment that does not cure the infection.
Typically, this happens when the wrong medicine is prescribed or not all of
the medicine is taken.
Some women who have been infected with
chlamydia develop a "hypersensitive response" when
they are exposed to the bacteria again. A second infection can cause more
irritation and damage to the pelvic organs that is worse than the first
Chlamydia is one of the most common sexually transmitted diseases in the U.S. This infection is easily spread because it often causes no symptoms and may be unknowingly passed to sexual partners. In fact, about 75% of infections in women and 50% in men are without symptoms.