This is an area where the advice has changed recently. BV wasn’t traditionally treated in partners, but recent Australian research has found that when a woman has BV and her male partner is treated at the same time, the BV is more likely to clear and less likely to come back. The partner’s treatment is taken alongside yours, and it works best when you both finish the full course and avoid sex during the treatment period. So if you have a male partner, and particularly if your BV keeps returning, it’s worth discussing partner treatment with the doctor, who can explain what it involves and whether it suits your situation. For a female partner, routine treatment isn’t currently recommended, though she may wish to be assessed if she has symptoms too.