Question: pelvic inflammatory disease inflammation of the female upper reproductive tract is caused by

title: Pelvic inflammatory disease
text: The disease is caused by bacteria that spread from the vagina and cervix . Infections by Neisseria gonorrhoeae or Chlamydia trachomatis are present in 75 to 90 percent of cases . Often multiple different bacteria are involved . Without treatment about 10 percent of those with a chlamydial infection and 40 percent of those with a gonorrhea infection will develop PID . Risk factors are similar to those of sexually transmitted infections generally and include a high number of sexual partners and drug use . Vaginal douching may also increase the risk . The diagnosis is typically based on the presenting signs and symptoms . It is recommended that the disease be considered in all women of childbearing age who have lower abdominal pain . A definitive diagnosis of PID is made by finding pus involving the fallopian tubes during surgery . Ultrasound may also be useful in diagnosis . 

Answer: answer: The disease is often caused by multiple, different bacteria that spread from the vagina and cervix .
answer: The disease is often caused by multiple different bacteria that spread from the vagina and cervix.  Infections by Neisseria gonorrhoeae or Chlamydia trachomatis are present in 75 to 90 percent of cases.