There is no medical term for mycosis fungoides, it should be mycosis vaginalis, which is an inflammation of the vulva and vagina caused by Pseudomonas albicans and can be transmitted. Pseudomonas albicans can be parasitized in the vagina of women as well as in the folds of the male foreskin, so mycosis fungoides can be transmitted directly through unprotected sexual contact. It is advisable to pay attention to sexual hygiene, to actively treat men with glansitis, and to cleanse daily or opt for surgical removal of overgrown foreskin in case of circumcision. Pseudomonas albicans can also be parasitic in the human oral cavity and intestinal tract, and these parts of the body can be infected with each other. For example, if you wipe your anus from back to front after a bowel movement, the white pseudomonal yeast in the gastrointestinal tract contaminates the vagina and causes mycosis fungoides. A small number of patients with mycosis vaginalis are infected indirectly through contact with infected clothing. Pseudomonas albicans is not resistant to heat, heated to 60 ℃, 1 hour to die. However, it is more resistant to dryness, sunlight and ultraviolet light. Therefore, it is recommended that patients with mycosis vaginalis change their underwear regularly and wash used towels and other household items with boiling water. In conclusion, mycosis can be transmitted through contact with the patient’s stool, sexual intercourse and contact with the patient’s clothing. To prevent transmission, patients should pay attention to personal and sexual hygiene, prohibit unprotected sex during treatment, and wash underwear, towels and other household items with boiling water.