 The aim of this prospective study is to collect data on in-patients with pelvic inflammatory diseasePID at Kangbuk Samsung Hospital. If patients agree to participate in this clinical trial, patients data such as age, body mass index, preoperative findings, laboratory findings, radiologic findings, operative findings, pathologic findings, postoperative findings will be collected in a research database. The research database will be updated, every 6 month, to include data on patients disease outcome and follow-up care. Although most data will be collected form the medical record, patient may agin be contacted so that researchers can collection some data if it is not in the medical record. 