Normal women’s leukorrhea should be white thin paste, or egg white-like, sticky, small amount, no odor is called physiological leukorrhea. When there is inflammation of the reproductive tract, such as vaginitis or cervicitis, or when cancer occurs, the amount of leukorrhea will increase significantly, and there is also a change in the nature of the leukorrhea.1. If there is a yellowish watery discharge from the vagina after giving birth, one possibility is that it is characteristic of trichomonas vaginitis, which may be accompanied by vulvovaginal itching.2. If the yellowish watery leukorrhea is viscous and has a foul smell, it is mostly caused by bacterial infection. It can be seen in Neisseria gonorrhoeae vaginitis, acute cervicitis and cervical canal inflammation, or pus in the uterine cavity, as well as foreign body residue in the vagina, etc., which can also lead to this yellow leukorrhea. It is recommended to go to the hospital in time to do internal examination and secretion examination, clear pathogenic bacteria, symptomatic treatment.