Pelvic inflammatory disease is one of the common gynecological diseases. During acute attacks, symptoms can be mild or severe, commonly lower abdominal pain and increased vaginal discharge, and most symptoms are relieved or disappear after standard antibiotic treatment. If acute pelvic inflammatory disease does not receive timely, effective and thorough treatment, the disease persists leading to tissue destruction, extensive adhesions, hyperplasia and scar formation, which transforms into chronic pelvic inflammatory disease (medically known as pelvic inflammatory disease sequelae), with clinical manifestations of infertility (20-30% incidence), ectopic pregnancy (8-10 times more than normal women), chronic pelvic pain, and recurrent pelvic inflammatory disease (about 25% recurrent episodes). Low back pain due to pelvic inflammatory disease, collectively known as chronic pelvic pain, is caused by the formation of adhesions and scarring from inflammation and pelvic congestion, often manifesting as lower abdominal cramps, pain and lumbosacral aches and pains, often intensifying after exertion, sexual intercourse and around menstruation. The literature reports that about 20% of acute pelvic inflammatory episodes are followed by chronic pelvic pain, which often occurs 4-8 weeks after the acute onset of pelvic inflammatory disease. For this kind of chronic pelvic pain, there is no effective treatment method, and the clinical treatment is mainly symptomatic, such as paying attention to rest, keeping warm to prevent cold, and applying local heat to the lumbosacral area, etc.; or giving comprehensive treatment such as Chinese medicine and physical therapy, and Chinese medicine mainly involves drugs to activate blood circulation and remove blood stasis, clear heat and detoxify toxins, and other diseases causing pelvic pain such as endometriosis should be excluded before treatment. Chronic pelvic pain causes a lot of trouble in women’s daily life, and there is no effective way to treat it. We should pay attention to the prevention of the cause of pelvic inflammatory disease, and those who have developed symptoms should be treated effectively in time to reduce the formation of sequelae.