1, the medication is not standardized. After treatment, due to the relief or elimination of pudendal itching symptoms, bacteria were inhibited and the disease was not completely cured. When the PH value of vagina changes, vaginitis will recur again.

2. Some couples did not receive treatment at the same time, and the woman passed the pathogen to her husband through sexual intercourse, making him a carrier. The male side has no obvious symptoms because its physiological structure is different from that of the female side. If only the woman is treated, but not the man, the pathogen will repeatedly "spread" between men and women through sexual life, leading to the recurrence of vaginitis in the woman.

3. Do not follow the doctor's advice and stop taking the medicine without authorization. 4. Bad hygiene habits.

Pay attention to personal hygiene, keep vulva clean and dry, and try to avoid skin damage caused by scratching vulva. During the treatment, sexual life and changing underwear are forbidden. Underwear, sitz bath and washing products should be boiled and disinfected for 5- 10 minutes to eliminate pathogens and avoid the chance of cross-infection and repeated infection.