Why does my tampon stink when it comes out?

Why Does My Tampon Smell When I Take It Out?

It’s normal to notice a slight scent when changing your tampon, but if you’re detecting a strong, foul, or fishy odor, that’s not something to brush off. Contrary to popular belief, fresh blood doesn’t have a strong smell. “Blood doesn’t even have an odor until it hits air,” explains Dr. Holmes. So when a tampon emits a noticeable stench upon removal, it might be a sign that something else is going on.

One common culprit is bacterial vaginosis (BV), a condition caused by an imbalance of bacteria in the vagina. BV often leads to a distinct fishy odor, especially after menstruation or sex. Unlike normal period odors, which are usually mild and temporary, BV-related smells tend to be persistent and more pungent. Other signs can include unusual discharge or irritation, though some people experience no symptoms at all.

Another factor? Leaving a tampon in too long. While tampons themselves don’t “go bad” in a few hours, extended wear can create a breeding ground for bacteria. This not only increases the risk of odor but also raises concerns like toxic shock syndrome (TSS), though it’s rare. Changing your tampon every 4 to 8 hours—and alternating with pads when possible—can make a big difference.

Hygiene matters, too. Regularly cleaning the external genital area (your "crevices," as Dr. Holmes puts it) with mild, unscented soap and water helps prevent bacterial buildup. Avoid douching or using fragranced products, which can disrupt your natural pH and worsen imbalances.

If foul odors keep happening, even with good hygiene and timely changes, it’s worth seeing your healthcare provider. Don’t ignore a persistent smell—your body might be signaling that it needs a little extra care.