There are two possibilities for the appearance of tofu slag-like discharge from the vagina after using the pessary: 1. The drug residue of the pessary itself will lead to tofu slag-like discharge in the vagina, often without vulvar itching or vulvar redness, mainly formed by the drug residue. 2. Candida vaginitis caused by the invasion of Candida due to unclean fingers in the process of using the drug will appear A large amount of bean curd-like discharge. This itching will make the patient restless and cause redness and swelling of the vulva or bladder irritation such as frequent, urgent and painful urination.