Approximately one in fourteen untreated Chlamydia infections will result in<unk> . Over one million cases of acute<unk>  are reported every year in the US, but the number of incidents is probably larger, due to incomplete and untimely reporting methods and that many cases are reported first when the illness has gone so far that it has developed chronic complications. For women age 16–25,<unk>  is the most common serious infection. It affects approximately 11% of females of reproductive age.<unk>  has a higher incidence among members of lower socioeconomic classes. However, this is thought of being an effect of earlier sexual debut, multiple partners, and decreased ability to receive proper health care rather than any independent risk factor for<unk> . As an effect of an increased risk due to multiple partners, the prevalence of<unk>  is highest for people age 15–24 years. Decreased awareness of symptoms and less will to use contraceptives are also common in this group, raising the occurrence of<unk> .
Salpingitis
Oophoritis
Epididymitis
Testicular pain
Pyonephrosis
Hydronephrosis
Vaginitis
Urethritis