Pelvic fluid 1 cm is not very serious, if not accompanied by clinical symptoms, can not be treated, dynamic observation can be. Pelvic fluid 1 cm is physiological fluid, mainly due to some inflammation oozing out of the pelvis caused by fluid can be absorbed normally. If the pelvic fluid exceeds 1 cm, it is serious, and it will cause lower abdominal swelling, discomfort, and usually accompanied by the symptoms of lumbar pain. Physiologic pelvic fluid is commonly formed when follicular fluid flows from the follicle into the uterine cavity after ovulation, and there are no obvious signs of abnormality such as abdominal pain or bloating. Physiologic pelvic fluid can usually be treated without therapy. When pelvic effusion occurs, it is necessary to consult a doctor to determine the cause of the condition and then treat the cause accordingly. When taking medication, it is important to follow the doctor’s instructions and not take it blindly to avoid adverse effects.