Generally speaking, the absence of leukorrhea in adult women may be related to endocrine disorders, vaginal environment, age factors and other reasons. 1. Endocrine disorders: If there is not enough estrogen and progesterone in the patient’s body to promote the secretion of mucus by the glands, then the instability of hormone levels will lead to endocrine disorders, which will lead to the absence of leukorrhea. 2. Vaginal environment: If the vaginal environment is damaged by the use of medicines in the absence of disease, or by the frequent use of salt water to douche the vagina, the absence of leukorrhea may also occur. 3. Age factor: Post-menopausal women may have no leukorrhea due to the lack of estrogen in their body as a result of the decline of ovarian function. If there is no more leukorrhea, it is recommended that the patient go to the relevant clinic of the hospital in time for examination to find out the cause of the disease and then give treatment.