Leukorrhea like snot and yellow mucus is vaginitis caused by dysbiosis. Normal leukorrhea is egg-white or white paste with small amount and no odor. Leukorrhea during ovulation becomes very thin and transparent, and the degree of drawing can reach more than 10cm. The types of common vaginitis and the characteristics of leucorrhea are as follows: 1. Trichomonas vaginitis: discharge is thin, purulent, yellow-green, foamy, and has a putrid odor; 2. Bacterial vaginosis: discharge is homogeneous, thin, white, and has a fishy odor; 3. Aerobic vaginitis: discharge is characterized by thin, purulent, yellow or yellow-green, sometimes foamy, and odorous, but not fishy; 4. Mycotic vaginitis. Also known as vulvovaginal pseudomycosis, the discharge is bean curd-like or curd-like. It is usually recommended to have a routine test of the leucorrhoea to clarify the type of vaginitis and then treat it symptomatically.