What Are Common Reasons for Vaginal Discharge Having an Odor?

There are a few common reasons why vaginal discharge might have an odor. One major cause is bacterial vaginosis. In this condition, the normal bacteria balance in the vagina change and a substance called trimethylamine is produced, giving the discharge a fishy smell. Some women may also experience similar odors when they have other types of vaginitis (inflammation of the vagina) where changes in the bacteria and pH can occur. These infections usually cause changes in the look, smell, or amount of discharge. Sometimes, the odor might be stronger if there is an overgrowth of certain bacteria. It is important to notice other symptoms too, like itching, burning, or discomfort, as they can indicate an infection. If you ever worry about a change in your discharge or odor, it's wise to talk with a healthcare provider to get the right tests and treatment if needed.