The most common symptom of fluid on the pelvis is abdominal pain, but a pelvic ultrasound is the only accurate weight to confirm the condition, says ZocDoc. Pelvic fluid is a symptom itself, and other symptoms depend upon the cause of the pelvic fluid.
Pelvic fluid indicates inflammation and a common cause is pelvic inflammatory disease, says ZocDoc. In pelvic inflammatory disease, a sexually transmitted disease, childbirth, pelvic procedure or abortion causes bacterial infection of the cervix that spreads to other parts of the reproductive system causing inflammation, says WebMD. Symptoms are abdominal pain, yellow or green vaginal discharge, fever, chills, painful urination, painful sexual intercourse, nausea and vomiting.
Endometriosis, the presence of uterine tissue in the abdominal cavity, is another frequent cause of pelvic fluid, notes ZocDoc. Symptoms of endometriosis are pelvic pain during periods, painful intercourse, painful urination and bowel movements, heavy periods, infertility, fatigue, diarrhea, constipation, and nausea, says Mayo Clinic. Endometriosis symptoms are cyclical and tend to be more prevalent during periods.
A more rare cause of pelvic fluid is ovarian cancer, says ZocDoc. Ovarian cancer has few symptoms, and those symptoms are easy to mistake for less serious problems, says Mayo Clinic. Ovarian cancer symptoms include bloating, swelling, weight loss, feeling full quickly, abdominal discomfort, constipation and frequent urination.