It’s important to remember that every woman has a unique scent, and having a mild vaginal odor is perfectly normal. That unique smell is the product of a diverse collection of bacteria, your body odor, and the delicate balance in your vaginal ecosystem — but what happens when that scent becomes overpoweringly strong?

Let’s shed some light on what could be the causes of unusual vaginal odor.

What Causes Vaginal Odor?

The scent of your vagina isn’t random; it’s a well-calibrated result of your body’s pH balance and the vaginal microbiome. Several factors, including hormonal changes, sexual activity, and your menstrual cycle, influence this balance.

Your vagina, like the rest of your body, has sweat glands. Located in the vulva and the groin area, these glands play a key role in your body’s temperature regulation. However, the sweat they produce can mix with bacteria in your genital area, contributing to body odor. Using a vaginal pH balancing cleanser can help reduce odor.

It’s worth noting that body odor is a normal part of human physiology. When this odor becomes unusually strong or pungent, you can explore other potential causes.

What Are the Common Causes?

Recognizing when a change in vaginal odor is abnormal can sometimes be tricky, but it’s an important first step in managing your health. The most common causes of an unusual vaginal odor can range from bacterial vaginosis and yeast infections to trichomoniasis and sexually transmitted infections (STIs).

Vaginal Infections

Bacterial vaginosis (BV) is a condition resulting from an overgrowth of certain types of bacteria in the vagina. One noticeable sign of BV is a fishy odor, especially after sexual activity. Similarly, yeast infections can cause an odor, often accompanied by a thick, white discharge.

Trichomoniasis

Trichomoniasis, a lesser-known but common STI, can also cause a strong, foul odor and is often accompanied by a frothy, yellow-green vaginal discharge. On the other hand, more well-known STIs, like chlamydia or gonorrhea, can also result in changes to vaginal odor and discharge.

Menopause

With menopause, significant hormonal changes occur, which can lead to a decrease in estrogen levels. This decrease can alter the typical scent of the vagina, leading to a change in the odor that some may find unusual.

Toxic Shock Syndrome (TSS)

Another factor to consider is the use of tampons. Tampons that are left in too long can lead to toxic shock syndrome (TSS), a severe and potentially life-threatening condition. One symptom of TSS is a foul, unusual odor.

Hormonal Imbalances

Hormonal imbalances can also contribute to changes in vaginal odor. Fluctuations in hormone levels, such as those that occur during pregnancy or certain medical conditions like polycystic ovary syndrome (PCOS), can disrupt the delicate pH balance of the vagina and lead to an altered scent.

Additionally, hormonal changes can affect sweat production and the sweat glands’ activity, which can further impact body odor in the genital area.

Urinary Tract Infections (UTIs)

Lastly, urinary tract infections — while technically affecting a different part of your body — can sometimes cause a strong, unpleasant smell if urine or discharge is left on the skin or fabric. This smell can often be mistaken as originating from the vagina, while it’s actually due to an infection in the urinary tract.

The Importance of Good Hygiene and a Healthy Lifestyle

When maintaining a healthy vaginal odor, hygiene and lifestyle choices play a significant role. However, good hygiene doesn’t mean over-cleansing.

Wash With Care

While it may seem counterintuitive, washing the vulva too often or using harsh soaps can disrupt the natural pH level of your vagina, leading to an overgrowth of certain bacteria and potentially causing a strong odor.

Instead, the Centers for Disease Control and Prevention (CDC) recommends washing the genital area with warm water and a mild soap or cleanser, promoting an optimal environment for the natural vaginal microbiome.