What causes PID?

Bacteria (a type of germ) moves up from a woman's vagina, infecting her tubes, ovaries, and womb. Many different types of germs can cause PID. But, germs found in two common sexually transmitted diseases (STDs)- gonorrhea and chlamydia- are most often the cause of PID. After a person is infected, it can take from a few days to a few months to turn into PID.

It is rare, but you can get PID without having an STD. No one is sure why, but normal bacteria found in the vagina and on the cervix can sometimes cause PID.