What is the damage done by pelvic inflammatory disease?

Infertility: The major damage is scarring and occlusion of the fallopian tubes leading to infertility.

Depends: It depends on t he organism, how early it was treated and how effective the treatment was. So it an range from nothing, to pelvic adhesions, to trouble having children from fallopian tube damage to inability in getting pregnant. Discuss with OB-GYN because there are post infection treatment options.