Pelvic effusion with mass after biochemical pregnancy

The presence of pelvic effusion accompanied by a mass after a biochemical pregnancy may indicate infection, inflammation, residual endometrial tissue or other pathological conditions. Timely medical attention is required for detailed examination and treatment, including ultrasound examination, blood tests, etc. to clarify the cause and avoid further complications.

1Infection or inflammation:

After a biochemical pregnancy, the body's immunity decreases. If bacterial infection enters the reproductive system, it may cause pelvic inflammation, accompanied by effusion and mass formation. Symptoms often include lower abdominal pain, fever, abnormal vaginal discharge, etc. It is recommended to observe the nature of the mass through ultrasound and to evaluate inflammatory indicators through blood tests, such as C-reactive protein and blood routine tests. Treatment mainly uses targeted infection control measures, such as oral or intravenous antibiotics such as cephalosporins, penicillins, and metronidazole.

2. Endometrial remnants:

If part of the embryonic tissue is not completely expelled after a biochemical pregnancy, it may cause an inflammatory reaction and lead to the appearance of pelvic effusion or a mass. This situation is often manifested as persistent vaginal bleeding and abdominal pain. Diagnosis can be made with the help of ultrasound to check whether there are abnormal images in the uterine cavity. Treatment includes short-term use of uterotonic drugs such as misoprostol or curettage, the latter of which must be performed under the supervision of a doctor.

3. Ovarian Corpus Luteum Cyst:

Fluctuations in hormone levels after biochemical pregnancy may stimulate the ovaries to form corpus luteum cysts, which usually absorb naturally, but may occur simultaneously with pelvic effusion in some cases. Patients may feel mild abdominal discomfort or no symptoms. Regular ultrasound follow-up is recommended to observe changes. Most cases do not require special treatment, but if the cyst is large and recurrent, drug intervention such as ovulation-promoting drugs or surgical treatment may be required.

4Other pathological causes:

Ectopic pregnancy may also be confused with similar presentations, especially when the pregnancy tissue is in the fallopian tube, causing fluid and mass formation. Severe abdominal pain or shock symptoms should alert the patient to this condition, and ultrasonography and blood hCG level monitoring can assist in diagnosis. Treatment includes chemotherapy drugs such as methotrexate or surgery to remove the ectopic tissue in the fallopian tube.

The presence of pelvic effusion and mass after biochemical pregnancy requires a combination of symptoms and imaging examinations to identify the specific cause and timely treatment to avoid further health impacts.