My boyfriend is a 33 year old healthy male. 2 weeks ago he had a laprascopic apendectomy. He was discharged on percocet, he was readmitted 4 days later for severe abdominal pain that went right to left and moved to below his rib cage when he lied down. CT showed fluid in the abdomen and a drain was placed ~ 100 ml fluid was drained and he was discharged on flagyl and bactrin. 1 week later he is back in the hospital and had to have fluid drained again, this time from his pelvic area. His only symptom is severe abdominal pain, no fever, no decreased appetite, and he doesnt have an elevated WBC. No one seems to know what is causing this and they are running every test under the sun on the fluid (anearobic, aerobic cultures and fungal tests, gram stain...everything) Hes on dilodid for pain. Could there be another post surgical complication causing this?