Pelvic inflammatory disease (PID) is an infection of the female reproductive organs, including the uterus, fallopian tubes, and ovaries. It typically occurs when sexually transmitted bacteria, such as those from chlamydia or gonorrhea, spread from the vagina to the reproductive organs. Common symptoms include pelvic or lower abdominal pain, abnormal vaginal discharge, painful intercourse, irregular menstrual bleeding, fever, and painful urination. Some women may experience mild or no symptoms, making it harder to diagnose.

If left untreated, PID can cause serious complications, such as infertility, ectopic pregnancy, or chronic pelvic pain. Treatment usually involves antibiotics to clear the infection, but severe cases may require hospitalization or surgery. Early diagnosis and treatment are essential to prevent long-term reproductive health issues. Regular STI screenings and practicing safe sex are key measures in reducing the risk of PID.