Pelvic inflammatory disease (PID) is a general term that refers to infection and inflammation of the upper genital tract in women. It can affect the uterus, fallopian tubes, ovaries, and other organs related to reproduction. The scarring that results on these organs can lead to infertility, tubal pregnancy, chronic pelvic pain, abscesses (sores containing pus), and other serious problems. PID is one of the common causes of infertility.

Women at greater risk for PID include those at risk for sexually transmitted infections (STIs) and those with a prior episode of PID. Sexually active women under age 25 are at risk as well because the cervix (opening to the uterus) of teens and young women has greater susceptibility to STIs. This may be because the cervix of teenage girls and young women is not fully matured, increasing their risk for STIs linked to PID.

Other potential risk factors include douching, which women should avoid. In some women, using an intrauterine device (IUD) to prevent pregnancy can also cause PID. Rarely, PID results from gynecological procedures or surgeries.

Millions women seek treatment for acute PID each year. Most of them try several treatment to cure it without good results. They get no effective treatment by costing too much efforts. It has become one of the most difficult disease to be cured all over the world. More and more doctors and professors have been working on the treatment or medicine to cure PID but seldom of them reach the goal.

A similar or greater number of women may have PID and not know it. Every year, more than 100,000 women become infertile and more than 150 women die from PID or its complications. PID is more common among teenage than adult women.