An increase or decrease in a woman’s leukorrhea, or even the absence of leukorrhea, is a sign of abnormal leukorrhea. Usually it is caused by gynecological diseases. So, what are the causes of low leucorrhea in women? Leukorrhea begins to appear when women’s ovaries start to develop after puberty and secrete estrogen to promote the development of reproductive organs. During each menstrual cycle, the quality and quantity of leukorrhea follow as the secretion of estrogen is sometimes more and sometimes less. Generally speaking, low or no leucorrhea is caused by ovarian dysfunction or hypogonadism and low levels of sex hormones, commonly seen in patients with more miscarriages, prolonged breastfeeding, long-term trauma and various chronic diseases such as chronic hepatitis, chronic nephritis, diabetes, hypothyroidism, etc. After entering menopause, the ovaries gradually atrophy and lose function, which can also cause low or no leucorrhea. If there is no leukorrhea or too little leukorrhea, symptoms such as vaginal dryness, burning pain, loss of libido, discomfort or difficulty in sexual intercourse, dizziness and tinnitus, weakness of lower limbs, irritability and thinning of hair may occur. With chronic leukorrhea, the vaginal defense function is weakened and vaginal inflammation can easily occur due to infection. Therefore the absence of leukorrhea requires active examination and treatment in the hospital.