Mycosis fungoides is a common vulvovaginal inflammatory disease caused by Pseudomonas. 70% of women suffer from mycosis fungoides at least once in their lifetime, and 45% of women go through two or more episodes. Its main transmission route is mainly endogenous, it can reside in the human oral cavity, intestine and vagina, these 3 parts of Pseudomycetes can infect each other, a small number of patients can be transmitted through sexual intercourse, and very few are indirectly transmitted through contact with infected clothing. The main manifestations are itching, burning pain, painful intercourse and painful urination in the vulva, and some patients may have increased vaginal discharge. Some patients may have increased vaginal discharge. The leukorrhea is often white and thick, curd or tofu-like.