It is possible to get pelvic inflammatory disease suddenly if you checked without pelvic inflammatory disease 2 months ago. Pelvic inflammatory disease belongs to women’s upper reproductive tract infectious diseases, so if the patient’s endometrium, fallopian tubes, pelvic connective tissue combined with Staphylococcus aureus, Escherichia coli, Neisseria gonorrhea and other pathogens infections, it will lead to the occurrence of pelvic inflammatory disease. If the patient has recently had uterine operations such as abortion or IUD removal, used unclean sanitary napkins or pads, or had sex during menstruation, the probability of pelvic inflammatory disease will be greatly increased. If the patient has lower abdominal pain, leukorrhea, fever and other discomforts, we should be vigilant about the occurrence of pelvic inflammatory disease, and recommend that the patient go to the gynecology department of a regular hospital as soon as possible, complete the ultrasound and other related examinations, and then take active treatment under the guidance of the doctor after clarifying the cause.