What is this and how can I get treated?

A pelvic inflammatory disease, called PID is an acute inflammation of the upper genital tract including the Uterus, Fallopian tubes and/or Ovaries.
Majority of the cases are caused by the commonly sexually transmitted pathogens: Commonly Neisseria gonorrhea and Chlamydia trachomatis
Who’re those at Risk Factors of developing PID?
Poorly treated STDs (sexually transmitted diseases/infections)
Multiple sexual partners
Intercourse without a barrier contraceptive
Poor socio-economic conditions
Sex /drug exchange workers or users
Many cases of Chlamydia infections go untreated and a very likely to cause infertility
What symptoms and signs are my likely to experience?
What complications can having PID on a long-term or untreated cause?
How will I be tested?
What treatment & preventive measures can I take?