What is Endometritis?
Endometritis is inflammation of the endometrium, the tissue lining the inside of the uterus. Acute endometritis usually develops after childbirth, miscarriage, an intrauterine procedure, or infection, and can cause pronounced symptoms. Chronic endometritis, on the other hand, can be milder and may cause no symptoms for a long time. Chronic endometritis is a focus of attention in the evaluation of infertility and recurrent implantation failure.
How does Endometritis Form?
Endometritis generally develops when microorganisms travel from the vagina and cervix into the uterus. Retained tissue in the uterus after childbirth or miscarriage, intrauterine procedures, and pelvic infections can increase the risk. In chronic endometritis, a single microorganism cannot always be identified. It should be kept in mind that not every bacterium found in the vagina indicates disease, and that a diagnosis cannot be made on the basis of an endometrial microbiome test alone.
What are the Symptoms of Endometritis?
Acute endometritis may cause fever, lower abdominal pain, uterine tenderness, foul-smelling discharge, and abnormal bleeding. Chronic endometritis, by contrast, may present with irregular spotting, mild pelvic pain, or discharge; many patients have no symptoms at all. Chronic endometritis has been associated with recurrent pregnancy loss and implantation failure in some studies, but uncertainty remains about the strength of this association and about who should undergo routine screening.
How is Endometritis Diagnosed?
Acute endometritis is diagnosed by considering the patient’s complaints, examination findings, and, where necessary, laboratory and imaging results together. In chronic endometritis, hysteroscopy may show redness, oedema, or small polyp-like areas, but these findings alone do not provide a definitive diagnosis. The diagnosis is usually based on microscopic examination of an endometrial biopsy and the demonstration of white blood cells using special stains.
How is Endometritis Treated?
Acute endometritis requires antibiotic treatment; urgent evaluation is needed if fever and severe pain occur after childbirth or miscarriage. In chronic endometritis, the choice of antibiotic can vary depending on the patient’s history and culture results. Routine antibiotics are not recommended for every patient before IVF. In patients diagnosed with chronic endometritis, whether a follow-up biopsy or hysteroscopy is needed after treatment is assessed on an individual basis.
