Post-abortion infection refers to the inflammatory reaction of the reproductive organs that occurs within 2 weeks after abortion in women of childbearing age due to the infection of pathogenic bacteria, including endometritis, uterine myositis, adnexitis and pelvic inflammatory disease. Generally, it can be clearly diagnosed through clinical manifestations and auxiliary examinations. I. Confirmation method of infection after abortion 1. Judgement according to clinical manifestations (1) body temperature above 38℃; (2) pressure and pain in the lower abdomen; (3) increased, turbid or purulent vaginal secretion; (4) gynecological examination may have uterine and adnexal pressure and pain, cervical pain, and sometimes accompanied by pelvic inflammatory lumps. 2, according to the auxiliary examination judgment (1) routine blood: visible white blood cell count is greater than 10 × 10 ^ 9 / L; (2) ultrasound: if caused by incomplete suction of the uterus, the presence of uterine residues; (3) double diagnosis: there may be pelvic abscess or inflammatory masses. Factors affecting post-abortion infection 1, premature sexual intercourse after abortion; 2, preoperative vaginal inflammation, chronic pelvic inflammatory disease, etc.; 3, vaginal bleeding for a long time, causing bacterial upward; 4, incomplete suction of the uterus in abortion surgery. Third, the prevention of infection after abortion 1, strict preoperative examination, such as vaginal or pelvic potential risk of infection, peripheral blood leukocytes greater than 10 × 10 ^ 9 / L, etc., should be preceded by anti-infective treatment; 2, one month after the operation, prohibit sexual intercourse, pelvic baths and swimming; 3, pay attention to personal hygiene, to keep the vulva clean, and change sanitary pads, the maximum use of time is not more than 2 h; 4, postoperative oral antibiotics 3 days, once the infection is detected, timely, and the use of oral antibiotics. 4, routine postoperative oral antibiotics for 3 days, once the infection is found, timely treatment.