Possible causes of pelvic pain are - Appendicitis - Irritable Bowel Syndrome (IBS) - Mittelschmerz i.e Painful ovulation - Menstrual cramps - Ectopic pregnancy - Sexually Transmitted Diseases (STDs) - Pelvic inflammatory disease - Ovarian cysts - Uterine fibroids - Endometriosis - Urinary Tract infection (UTI) - Kidney stones - Interstitial cystitis (IC) - Pelvic organ prolapsed - Pelvic Congestion Syndrome - Scar tissue - Vulvodynia - Painful sex - Chronic pelvic pain