| Characteristics | n | % |
| History of chronic pelvic pain | 116 | 55.8 |
| History of dyspareunia | 63 | 30.3 |
| Past history of pelvic inflammatory disease | 115 | 55.3 |
| Positive serology of Chlamydia trachomatis | 116 | 55.8 |
| Past history of pelvic surgery |
|
|
| *Annexal surgery | 35 | 16.8 |
| Myomectomy | 38 | 18.4 |
| **Others | 8 | 3.8 |