Bacterial vaginosis (BV) is a common vaginal infection that can cause symptoms such as itching, burning, and abnormal discharge. While the exact causes of BV are not fully understood, there are several factors that can increase the risk of developing the condition, including sexual activity with a new partner or multiple partners, douching, and using certain types of contraceptives. In some cases, women may experience recurrent BV infections with the same partner, which can be frustrating and difficult to manage. Here are some possible reasons why this may happen:
- Unbalanced vaginal microbiome: The vaginal microbiome is a delicate ecosystem that consists of various types of bacteria, including lactobacilli, which help to maintain a healthy pH balance and prevent overgrowth of harmful bacteria. When the balance of bacteria is disrupted, it can lead to an overgrowth of anaerobic bacteria, which are associated with BV. Factors such as antibiotics, hormonal changes, and semen exposure can disrupt the vaginal microbiome and increase the risk of BV. If a woman and her partner have different vaginal and penile microbiomes, it can create an imbalance that makes it more difficult to control BV.
- Reservoirs of BV-causing bacteria: In some cases, men can be carriers of the bacteria that cause BV, even if they do not experience symptoms themselves. These bacteria can be present in the urethra, on the skin of the penis, and in semen. If a woman’s partner is a carrier of these bacteria, it can increase her risk of developing BV, even if she has good hygiene practices and takes steps to maintain a healthy vaginal microbiome.
- Reinfection from untreated partner: If a woman is treated for BV but her partner is not treated, he may continue to carry and transmit the bacteria that cause BV. This can lead to reinfection in the woman, even if she takes steps to maintain a healthy vaginal microbiome. It is important for both partners to receive treatment to fully eradicate the bacteria and prevent reinfection.
- Sexual practices: Certain sexual practices, such as unprotected sex or anal sex, can increase the risk of BV by introducing bacteria from the anus into the vagina. If a woman and her partner engage in these types of sexual practices, it can make it more difficult to control BV.
- Personal hygiene: Personal hygiene practices can also play a role in the development of BV. Douching, using scented products, and wearing tight or synthetic clothing can all disrupt the delicate balance of the vaginal microbiome and increase the risk of BV. If a woman and her partner have different hygiene practices or use different types of products, it can make it more difficult to control BV.
If you are experiencing recurrent BV infections with the same partner, it is important to talk to your healthcare provider about possible causes and treatment options. Treatment may involve antibiotics, probiotics, and lifestyle changes such as maintaining good hygiene practices and using barrier methods during sex. It may also be helpful for both partners to be treated simultaneously to fully eradicate the bacteria and prevent reinfection. By working with your healthcare provider and your partner, you can develop a plan to manage BV and reduce the risk of recurrent infections.