If you’re smelling a coppery smell, it could be tied to blood. Blood contains iron, which is responsible for the metallic smell. So, if you’re on your period, that could be the cause of the copper odor. Even if it’s not your period, you could be experiencing light bleeding from sex and that could be the culprit. A copper smell is no cause for alarm, unless you’re also experiencing itching, burning, and/or suspicious discharge. If you notice this smell but you’re not menstruating (or just finished menstruating) or you did not recently have sex, you may want to speak to your gynecologist. It’s not common, but it could indicate abnormal internal vaginal bleeding.