不同年龄，不同时期，私密清洁方式有什么不同呢？ 酸碱值一样吗？ pH3.5? pH4.5？ 其实，儿童期、成年女性、怀孕、产后、生理期、更年期后都有不同唷！
很多人来门诊都会问Connie医生私密清洁的问题，其实私密处的酸碱值受雌激素影响，不同年龄与时期雌激素分泌量不同，而雌激素会促进私密处的黏膜增厚并且分泌更多的肝糖让乳酸菌转化为乳酸，乳酸越多会使私密处越酸，而越酸的环境，越能抵抗坏菌，根据2015年的一份研究，当私密处pH值超过4.5时，会大幅增加坏菌侵袭的风险，所以，维持足够酸的私密环境有助于保持私密处的健康。
成年的健康女性私密处约为pH3.5~pH4.5，因此，使用pH3.5温和的清洁配方能帮助持续维持酸性环境。
初经前的儿童由于尚未发育完全，雌激素尚未分泌或浓度较低，私密处的pH值与体液相当，约为pH6~7接近中性，为多数坏菌喜好的环境，因此十分容易一不注意就产生不适的情形，当私密处不舒服时，可用pH3.5的清洁配方清洗，利用酸性的特性可帮助缓解不适。
怀孕期分泌物会变多，正常状态下是清澈透明状的酸性白带，但随着孕期发展，分泌物可能开始变深变味pH上升，产后恶露或生理期血污分泌，由于是接近中性的物质，因此也会使私密处pH上升，此时就可用pH3.5的清洁配方清洗，帮助维持酸性环境。
更年期后的女性，雌激素分泌渐渐降低，私密黏膜会渐渐干涩，酸碱值也会逐渐上升，约为pH5~7，使用pH3.5及含有益生元及滋润成分的清洁配方，能帮助酸性环境及舒缓干痒不适。
The woman's intimate area has physiological characteristics and defense mechanisms, among which we can highlight: pH and microbiome. Intimate hygiene care is highly pertaining to the pH. In this way, the pH of intimate area varies according to the woman’s age from teenage to postmenopausal.
From puberty, due to the start of estrogen production, the pH of the intimate zone becomes acidic. And according to a research in 2015, it says that women is at higher risk facing bad bacteria infection if pH of intimate area exceeds 4.5.
Studies indicate that vulvar pH is normally 3.5～4.5 for healthy mature women. It is recommended to use a mild pH3.5 Feminine Wash with cleanse formula in help of the acidity sustain.
In childhood, pH of intimate area to young girl is around 6 to 7 since the lack of estrogen production. It happens to be the compatible environment for bad bacteria. We recommend to use the mild pH3.5 to relieve the uncomfortableness.
- Pregnancy, post partum, menstruation
In pregnant period, body`s pH levels raises nearly to neutral because of excessive vaginal discharge. The mild pH3.5 Feminine Wash helps healthy microbiome becomes acidic.
Due to the decrease of estrogen production, the pH level of women in postmenopause is most likely to increase to 5～7. The mild pH3.5 Feminine Wash enriched in prebiotics can be the Chosen Product.
参考数据：
Kalia N, Singh J, Kaur M. Microbiota in vaginal health and pathogenesis of recurrent vulvovaginal infections: a critical review. Ann Clin Microbiol Antimicrob. 2020 Jan 28;19(1):5. doi: 10.1186/s12941-020-0347-4. PMID: 31992328; PMCID: PMC6986042.
O’Hanlon, D., Moench, T., & Cone, R. (2013). Vaginal pH and Microbicidal Lactic Acid When Lactobacilli Dominate the Microbiota. Plos ONE, 8(11)
Farage MA, Miller KW, Sobel JD. Dynamics of the Vaginal Ecosystem—Hormonal Influences. Infectious Diseases: Research and Treatment. 2010;3. doi:10.4137/IDRT.S3903
Aldunate, M., Srbinovski, D., Hearps, A., Latham, C., Ramsland, P., & Gugasyan, R. et al. (2015). Antimicrobial and immune modulatory effects of lactic acid and short chain fatty acids produced by vaginal microbiota associated with eubiosis and bacterial vaginosis. Frontiers In Physiology, 6.
The Vulva: Physiology and Clinical Management, Second. Miranda A. Farage, Howard I. Maibach · 2017