Acute salpingitis is mainly characterized by endometrial inflammation. If it comes from acute pelvic inflammatory disease, the lesions are extensive. The fallopian tubes and other tissues are congested and exuded, and the purulent exudates in the cavity flow into the pelvic cavity, causing pelvic peritonitis. In severe cases, pelvic abscesses are formed. The inflammation spreads to the ovaries, forming salpingo-oophoritis or abscesses. If the fallopian tube umbrella is adhered and closed, it may form tubal pus, which is more common in acute attacks of chronic inflammation. Pathogenic microorganisms can often be found in the exudate pus and mucosal surface of acute inflammation. If acute inflammation is not treated in time, it can turn into chronic salpingitis; acute attacks of chronic salpingitis are manifested as acute inflammation. Redness and swelling of the fallopian tubes can be seen with the naked eye, and the pelvic organs also show inflammatory changes such as congestion, edema and exudation. Pressing the fallopian tubes may cause pus to flow out, and changes in pelvic abscesses such as fallopian tubes and ovaries may be seen.