The main causative agent of moldy vaginitis is Pseudomonas albicans, and a lot of women have this bacteria in their vaginas, because the content is relatively small, and usually does not cause symptoms. The causes of the onset of the following: 1, the abuse of antibiotics, antibiotics can eliminate harmful pathogenic bacteria, beneficial bacteria will also be interfered with, the vaginal flora will be due to antibiotics to lose balance, the internal environment is disturbed, so that a large number of Pseudomona albicans breeding and thus the onset of disease. 2, the body of estrogen level is high, such as pregnancy, taking estrogen will lead to the body of the level of estrogen, will make the vaginal tissues of Glycogen increases and acidity increases, which is conducive to the growth of Pseudomonas aeruginosa. 3, the massive use of immunosuppressive drugs, such as sebaceous steroid hormones or immunodeficiency syndrome, resulting in a decrease in the body’s immunity and the onset of the disease. 4, other, such as diabetes, wearing tight chemical fiber panties, obesity, is also to promote the reproduction of Pseudomonas aeruginosa and the cause of infection.