Diagnosing IBS in women involves a comprehensive approach: - Medical History and Physical Exam: A detailed history of symptoms, menstrual cycle, and any gynecological conditions. - Exclusion of Other Conditions: Tests to rule out gynecological disorders like endometriosis, ovarian cysts, and PID. This may include pelvic ultrasonography, laparoscopy, and other imaging studies. - Rome IV Criteria: These criteria help in diagnosing IBS based on specific symptoms like recurrent abdominal pain and changes in bowel habits.