Pelvic inflammatory disease (PID) is an infection of the female reproductive organs, including the uterus, fallopian tubes, and ovaries. Ever felt a persistent ache in your lower abdomen or experienced discomfort during intimate moments? These could be signs of PID, a condition that often results from untreated sexually transmitted infections (STIs) like chlamydia and gonorrhea. It’s essential to understand PID, as it can lead to serious complications if left untreated.