Fibroid tumors are often found in women in their 30's and 40's; they're usually benign (non-cancerous). Fibroids are solid tumors,i.e they occur as solitary or multiple solid masses that cause no symptoms. Although most of these tumors do not cause symptoms,some women may experience abnormal bleeding, pain during menstruation, and a swollen abdomen. As fibroid tumors grow they may also cause inability to control the bladder, or even constipation. Investigating pelvic fluid depends on the amount of fluid and the local area that is affected. You might request several diagnostic procedures to identify the reason for the fluid collection in the pelvis. For example, you can request a transvaginal ultrasound and CT scan of the pelvis, which are non-invasive procedures. A laparoscopy can also be performed. You can consult a gynecologist for an exact diagnosis and more details. Additionally, you'll have to contact BCBS in order to find a specialist who is in your network.