The vagina itself is a breeding ground for bacteria? More than 20 species of microorganisms can be isolated from the vagina of a normal woman, with bacteria predominating. Common bacteria include: Lactobacillus, Corynebacterium, non-hemolytic Streptococcus, Enterococcus and Staphylococcus epidermidis, Gardnerella, Escherichia coli, Peptococcus, Mycoplasma and Pseudomycetes, among others. How does vaginal inflammation occur? Although a variety of microorganisms are present in the normal vagina, there is an ecological balance between these microorganisms that does not lead to vaginal inflammation. This balance means that Lactobacillus is dominant among the microorganisms, producing hydrogen peroxide and other anti-microbial factors that can inhibit or kill other bacteria. This dominant protection of Lactobacillus creates an acidic vaginal environment and competition for nutrients that discourages the growth of other microorganisms. Once this balance is disturbed, vaginal inflammation can develop. What are the common causes of vaginal inflammation in the Department of Obstetrics and Gynecology, Shandong Qianfo Mountain Hospital, Hongtao Lu? ① Abuse of broad-spectrum antibiotics: Long-term use of broad-spectrum antibiotics can inhibit the growth of Lactobacillus, breaking the occupancy protection of Lactobacillus and giving other microorganisms a chance to multiply. Frequent sexual intercourse: after sexual intercourse, vaginal PH can rise to 7.2 and maintain 6-8. Frequent sexual intercourse can keep vaginal PH in neutral or alkaline environment, which is conducive to the growth of pathogenic microorganisms. Frequent intercourse also increases the chance of infection by external pathogenic microorganisms. Vaginal douching: Vaginal douching can also increase vaginal PH, which is not conducive to the growth of Lactobacillus. ④Drop in estrogen: postmenopausal women have a drop in estrogen, the vaginal epithelium becomes thinner and the PH rises, which can also make other pathogenic bacteria become dominant and cause inflammation. ⑤ Endogenous infection: For example, Pseudomonas aeruginosa is not only parasitic in the vagina, but also exists in the human oral cavity and intestine, and these three parts can infect each other and cause infection once the conditions are suitable. (6) Exogenous infection: For some vaginitis can be transmitted indirectly through sexual intercourse, public baths, bidets, toilets, clothing, etc. For example, trichomoniasis. (7) In addition, the body’s resistance decreases and its own defenses are damaged, which also gives pathogenic microorganisms a chance to take advantage of the situation. Finally, I would like to give some advice: exercise properly to improve your immunity; have the right amount of intercourse to let your vagina recuperate; be clean, not only should you take care of contraception during sex, but also be careful not to get infected with diseases; use antibiotics at the right time, don’t kill the “good guys”; be careful with vaginal douching, it’s not clean if you wash it well; wear cotton and breathable underwear; and reduce close contact in public places. The first thing you need to do is to seek medical attention in a timely manner, and never go to a private hospital.