Ultrasound in pelvic inflammatory disease mainly shows inflammation of the woman’s pelvis, which includes the uterus, fallopian tubes and ovaries. Changes in the uterus may reveal an uneven echogenicity of the endometrium and in some cases may be accompanied by an enlargement of the uterus. The main manifestations of the fallopian tubes and ovaries are thickening of the fallopian tubes, some may have fluid in the fallopian tubes, some cystic cysts can be seen at this time, some may have pelvic fluid, usually over 20mm, which can be differentiated from physiological pelvic fluid. In addition, some people may find masses on the outside of the fallopian tubes and ovaries. Such masses are also usually cystic and have better sound transmission, and inflammation is usually bilateral with cystic masses in the adnexa.