Pelvic inflammatory disease(PID) sequelae are common gynecological diseases and seriously affect the physical and mental health of women.Their main manifestations include chronic pelvic pain,infertility,ectopic pregnancy,and recurrent attacks of PIDs.Danbai Granules,prescribed by the national prestigious traditional Chinese medicine(TCM) doctor Xu Zhihua based on the dampness-heat obstruction syndrome of PID sequelae,are composed of Moutan Cortex,Sargentodoxae Caulis,Violae Herba,Sparganii Rhizoma,Curcumae Rhizoma,Patriniae Herba,Chuanxiong Rhizoma,Hedyotis Diffusae Herba,Solani Lyrati Herba,Smilacis Glabrae Rhizoma,Patriniae Scabrae Radix,Ailanthi Cortex,Paeoniae Radix Alba,and Angelicae Sinensis Radix.They have definite clinical efficacy in the treatment of PID sequelae.This paper analyzed the etiology and pathogenesis of PID sequelae from the TCM perspective and explored the prescription mechanism of Danbai Granules in the treatment of PID sequelae from the science of Chinese medicinal formula based on modern TCM pharmacological research to provide a theoretical basis for clinical application of Danbai Granules.