A laparoscopy may be done to find the cause of symptoms.

http://www.patient.co.uk/health/laparoscopy-and-laparoscopic-surgery

A laparoscopy may be done to find the cause of symptoms such as abdominal pain, pelvic pain, or swelling of the abdomen or pelvic region. Or, it may be done if a previous test such as an X-ray or scan has identified a problem within the abdomen or pelvis.