Uteritis is mainly an inflammation of the uterine mucosa caused by pathogenic infection, mechanical injury, chemical stimulation, etc. It is divided into cervicitis and endometritis. The specific causes are as follows: I. Cervicitis 1. Acute cervicitis: is caused by sexual intercourse, abortion, childbirth, diagnostic scraping, etc., mostly due to Neisseria gonorrhoeae and Chlamydia trachomatis. When a patient has acute cervicitis, it usually manifests itself as, increased leucorrhea with purulent discharge; it is usually combined with urethritis, cystitis, vaginitis and therefore may present with varying degrees of lower abdominal and lumbosacral cramps and bladder irritation symptoms. Acute cervicitis usually requires simultaneous treatment with sexual partners, and systemic treatment with antibiotics, such as ceftazidime and ofloxacin, is recommended. 2. Chronic cervicitis: Mostly caused by unclean sex, decreased estrogen levels, and long-term stimulation of vaginal foreign bodies. Usually, combined with the reason for the patient’s visit and past medical history, patients may be found to have increased leucorrhea, milky or slightly yellowish, purulent mucous changes, and symptoms such as dysmenorrhea and menstrual irregularities. The most common clinical method is drug treatment, which can be done either by vaginal douching with potassium permanganate solution or by local administration of vaginal medication. Second, endometritis 1, acute endometritis: it is caused by puerperal infection and infected abortion. Acute endometritis has an acute onset and patients may usually have symptoms such as fever, lower abdominal pain, increased leucorrhea, and sometimes pain at the uterus when touched. In this case, it is recommended that the patient rest in bed and avoid having too many gynecological examinations that could induce the spread of the infection. At the same time, it is recommended to give antibiotics for treatment to clean up the uterine cavity; 2. Chronic endometritis: due to a small amount of fetal membranes or placenta remaining in the uterine cavity after delivery, or incomplete uterine regeneration at the site of placental attachment; early sexual life, multiple sex partners at the same time, or sex partners with transmitted diseases can also cause infection; uterine operations, such as after abortion or curettage, bring bacteria into the uterine cavity and cause infection. Especially after abortion, there is residual tissue which is a foreign body and can cause secondary infection. There is no specific clinical manifestation. It is recommended to make a definite diagnosis by combining symptoms such as history of infection, increased leucorrhea, dysmenorrhea with vague pain in the pelvic region and irregular menstruation.