Every vagina is different, and that includes the smell that accompanies it. Some women talk about having a "fishy" smelling vagina, while other may say their's has a staler scent. There are even some who claim to have a tart-smelling vagina, leading one to wonder "“why does my vagina smell sour and should I be concerned."
Don't panic yet, though. According to Bustle , sometimes a sour or musky smell is simply a heavier version of your vagina's scent caused by potentially getting hot and sweating as a result. Similarly, in an interview with Redbook, professor of OB-GYN at the Medical University of South Carolina Dr. Scott Sullivan said that many women naturally have a subtle vinegar-type odor that comes from their vagina and isn’t generally potent.
That being said, he also aded that if you do notice a sour or even musky smell, it could actually be a strong indicator of bacterial vaginosis. According to WebMD, bacterial vaginosis is a fairly mild infection caused by bacteria. Generally, there’s a balance of both good and bad bacteria within the vagina, and on a basic level, bacterial vaginosis means that balance is upset. It can be caused for a lot of reasons from new sexual activity to not getting enough sleep to douching.
Although bacterial vaginosis and the sour smell it may cause from your vagina generally go away within just a few days, it can occasionally lead to more serious problems. Therefor, it’s a good idea to see your doctor if symptoms persist, according to Mayo Clinic. Some of the less common, but more serious complications bacterial vaginosis may lead to include preterm birth for women who are pregnant, sexually transmitted infections, or pelvic inflammatory disease, which could increase the risk of infertility.
It is important, however, to keep in mind that for the most part complications don’t arise, and a sour odor coming from your vagina is not a reason to be alarmed. Instead, it’s the most common sign of bacterial vaginosis, which clears up on its own after just a few days. If the smell persists or methods you’re using to get rid of bacterial vaginosis aren’t working, it is still a good idea to make an appointment with your healthcare provider for further treatment.