A positive endometrial CD138 means that the patient may have a condition such as chronic endometritis. Symptoms of endometritis are mainly mild fever, lower abdominal pain, increased leukorrhea, and slight pressure on the uterus on gynecological examination. If the inflammation is not treated in time, it spreads to the deep and infects the muscle layer, in which small abscesses are formed, which can form myometritis, tubo-ovarianitis, pelvic peritonitis, etc., and can even lead to sepsis with corresponding clinical manifestations. Once diagnosed with endometritis, it is necessary to follow the doctor’s instructions in time to avoid delaying the condition.