Whether pelvic effusion 53mmx27mm is serious or not is related to the etiology of the patient, some patients are not serious and some patients are serious. If the patient for the pelvic inflammatory diseases caused by the effusion, this pelvic effusion is inflammatory effusion, at the same time, the patient may be accompanied by fever, abdominal pain, secretions have a foul smell and other clinical manifestations, need to apply ceftriaxone, metronidazole, doxycycline and other drugs, generally good prognosis, the condition of such patients is not serious. If the patient is ectopic pregnancy rupture, corpus luteum rupture and other diseases caused by effusion, at this time the pelvic fluid is blood, with the progression of the disease, the patient’s internal bleeding can continue to increase, the pelvic effusion increases, the serious can appear hemorrhagic shock, such patients with severe conditions, should be timely surgical treatment. If the patient has pelvic effusion, the cause of the disease should be clarified first, and treatment should be carried out under the guidance of specialized physicians.