Women’s leukorrhea is a mixture of vaginal mucous membrane exudate, cervical canal and endometrial gland secretion, etc., and its formation is related to the action of estrogen. Normal female leukorrhea is white thin paste or egg white, sticky, small amount, no fishy odor, known as physiological leukorrhea. Inflammatory diseases of the reproductive tract, such as vaginitis and acute cervicitis, or when cancer occurs, the amount of leukorrhea increases significantly, and its character also changes, which is called pathological leukorrhea. If a woman has intermittent lower abdominal pain and yellowish leukorrhea, it may be caused by vaginitis, cervical inflammation or pelvic inflammatory disease, and the infectious agent may be trichomonas or bacterial infection. In this case, it is recommended to go to the hospital to do gynecological internal examination, so that the doctor to carry out physical examination, palpation of the lower abdomen, if there is inflammation can be actively treated.