Once upon a time, the “wash for better health” commercials were widely broadcast on TV, making many people take washing their vaginas as a measure to maintain their health. In a survey conducted on Sina Weibo today, the results of more than 5,000 votes show the current situation. Nearly half of the women used vaginal douching on the advice of their doctors, and about 10 percent of the women had the habit of irregularly douching their vaginas. Vaginal douching, which I also used to use as a treatment for vaginismus, has now been found to be detrimental to health. There have been studies, a meta-analysis (i.e., a synthesis of the results of published studies, which is a higher level of evidence than individual studies) published in 1997 analyzed the relationship between vaginal douching and the development of many diseases. We can probably see the following results from the study: 1, vaginal douching increases the incidence of pelvic inflammatory disease The results shown inside when the marker line falls on the 0 side of the unilateral time that is unfavorable, OR value (ratio ratio) are in the right side of the region above 1, the overall OR value is 1.73 (1.07 ~ 2.79), suggesting that vaginal douching will make the occurrence of pelvic inflammatory disease 73% increase in the chance of douche The higher the number of times, the higher the chance of inflammation. Vaginal douching increases the risk of ectopic pregnancy and infertility It can probably be seen that vaginal douching increases the chance of ectopic pregnancy. Aggregate data suggests that patients who douche are 1.8 times more likely to have an ectopic pregnancy than those who do not douche. The study also found that using commercial douches was more risky than water. Another study found that women who douche are 30 percent less likely to get pregnant than those who don’t, a difference that is especially pronounced in younger women. Among them, women aged 18-24 had a 50 percent lower chance of getting pregnant, women aged 25-29 had a 29 percent lower chance of getting pregnant, and women aged 30-39 had a 6 percent lower chance of getting pregnant. 3, vaginal douching increases the incidence of cervical cancer Research suggests that vaginal douching slightly increases the risk of cervical cancer (RR value 1.25, 95% confidence interval 0.99 ~ 1.55). Frequent douching (more than once a week) increased the risk of cervical cancer by 86% compared to those who did not douche. Similarly, the use of commercial douches increased the risk even more than that of water. 4, vaginal douching increases the risk of sexually transmitted diseases In another study found that 657 sex workers in Kenya survey found that due to vaginal douching makes lactobacillus disappear, the risk of HIV infection increased by a factor of 1, the risk of gonococcal infection increased by 1.7 times. A 10-year cohort study of 1,270 Kenyan sex workers found that women who douched with water were 2.64 times more likely to be infected with HIV than those who did not, and that the risk of HIV infection was even higher if douching was done with antiseptic detergents. The survey of 2897 South African women also found that women who douche 1.74 times higher risk of HIV infection than women who do not douche. 5, vaginal douching increases the risk of low birth weight children Many studies have reported that if douching before or during pregnancy, it may also increase the risk of preterm labor and the occurrence of low birth weight children. In a group of 4,665 women of childbearing age and 11,553 cases of single live births, 650 cases of douching 2-3 times a week, they are more likely than those who do not douche the possibility of delivery of low-birth-weight babies increased by 40%. The results showed that vaginal douching was associated with an increased risk of delivering a low birth weight baby OR=1.29 (95% CI:1.06-1.57). Frequency of douching was dose related to delivery of low birth weight babies, OR=2.49 (95% Cl:1.23-5.01) for those who douched daily and OR=1.13 (95% Cl:0.83-1.55) for those who douched monthly. The vagina itself is a slightly acidic environment with the presence of Lactobacillus at a pH of about 4.5, which inhibits the growth of other pathogenic bacteria; vaginal douching disrupts the internal environment of the vagina and instead promotes the growth of abnormal flora, leading to vaginal inflammation. In addition, it is hypothesized that vaginal douching may provide a fluid vehicle for pathogenic bacteria, making them more susceptible to migration, and the increased incidence of ectopic pregnancy may be related to problems secondary to pelvic inflammatory disease. With vaginal douching around ovulation, there is a higher chance of retrograde entry of pathogenic bacteria into the body for infection. During pregnancy, an upstream infection may lead to amnionitis resulting in preterm labor. For the treatment of vaginal inflammation in general, vaginal douching should be abandoned as a treatment option at this time, and the American College of Obstetricians and Gynecologists (ACOG) advises against vaginal douching at all times. From our survey data, it appears that physician-recommended douching is still an important reason for many women to perform vaginal douching today. Currently it seems that the doctor’s concept of change is the key, since the study has confirmed a number of adverse, then doctors should give up the market there are a variety of detergents used for vaginal douching, general vaginal inflammation, symptomatic suppository treatment is sufficient, there is no need to use the drawing of the snake to add.