A skunk-like smell from the vaginal area is almost always coming from sweat glands in the skin around the vulva, not from inside the vagina itself. The groin contains a high concentration of apocrine glands, the same type found in your armpits, and when bacteria on the skin break down the oily sweat these glands produce, the result can be a sharp, musky, even skunk-like odor. This is distinct from the “fishy” smell associated with infections like bacterial vaginosis, and in most cases it points to something manageable rather than something medically wrong.
Apocrine Sweat Glands and Sulfur-Like Odor
Your body has two types of sweat glands. The eccrine glands, spread across most of your skin, produce the watery sweat that cools you down. Apocrine glands are different. They’re concentrated in your armpits and genital area and release a thick, oily sweat that’s essentially odorless on its own. The smell happens when bacteria that naturally live on your skin break this sweat down into smaller compounds, some of which contain sulfur. That sulfur component is what gives the odor its skunky, pungent quality.
This process is called bromhidrosis, and it’s the most common condition affecting apocrine glands. It doesn’t mean anything is wrong with your vaginal health. It means the bacteria on the skin of your vulva and groin are doing exactly what they always do, just producing a more noticeable smell under certain conditions.
Why Stress Makes It Worse
Apocrine glands respond to emotional stress, not just heat. When you’re anxious, nervous, or under pressure, these glands ramp up production. The sweat they release during stress is thicker and oilier than regular sweat, giving bacteria more material to break down. If you’ve noticed the skunky smell is stronger during high-stress periods, this is likely the reason. The Cleveland Clinic specifically notes that a skunk-like scent from the vaginal area can be a sign that stress is pushing your sweat glands into overdrive.
Foods That Change the Smell
What you eat can shift the odor of both your sweat and vaginal secretions. Sulfur-rich foods are the biggest culprits. Garlic, onions, asparagus, and Brussels sprouts all contain sulfur compounds that your body processes and partially excretes through sweat and other secretions. Other foods linked to stronger or altered scent include red meat, fish, coffee, spicy foods, and supplements containing choline. The effect is usually temporary, clearing within a day or two after you stop eating the food in question.
Dehydration and Concentrated Urine
Sometimes the smell isn’t coming from the vagina or the vulvar skin at all. When you’re dehydrated, your urine becomes more concentrated, and the ammonia it naturally contains smells much stronger. Because urine passes so close to the vaginal opening, it’s easy to mistake the source. If the smell is sharper when you use the bathroom and you notice your urine is dark yellow, dehydration is worth considering. Drinking more water dilutes the ammonia and reduces the intensity.
How This Differs From an Infection
The classic vaginal infections produce different smells. Bacterial vaginosis, the most common cause of unusual vaginal odor, creates a distinctly fishy smell, not a skunky one. It also typically comes with a thin, grayish-white discharge. Trichomoniasis, a sexually transmitted infection caused by a parasite, can produce either a fishy or musty odor and may include greenish-yellow discharge, itching, or burning during urination. A yeast infection tends to smell faintly sweet and causes thick, white, cottage cheese-like discharge with itching.
If what you’re smelling is more like body odor or a skunk, without abnormal discharge, itching, burning, or irritation, it’s far more likely to be apocrine sweat than an infection. If the smell is accompanied by any of those other symptoms, or if the odor has changed suddenly and dramatically, that warrants a closer look from a healthcare provider who can check vaginal pH and examine a sample under a microscope.
Practical Ways to Reduce the Smell
Since the odor comes from bacteria breaking down sweat on the skin’s surface, the goal is to reduce moisture buildup and limit bacterial overgrowth without disrupting the vaginal microbiome. The vagina itself is self-cleaning. You should never put soap, douches, or fragranced products inside it. The vulvar skin, however, can be gently washed with warm water or a mild, unscented cleanser.
Underwear fabric matters more than most people realize. Cotton is the best choice because it breathes and wicks moisture away from the skin, reducing the warm, damp environment where odor-producing bacteria thrive. Synthetic fabrics trap heat and sweat. Even underwear marketed with a “cotton crotch panel” doesn’t offer the same breathability as 100% cotton, because the surrounding synthetic material still limits airflow.
Change your underwear daily, and more often if you’ve been sweating heavily. At night, going without underwear or wearing loose pajamas increases airflow to the area and helps keep things dry. If you use panty liners throughout the day, consider cutting back. They decrease breathability and can contribute to irritation and moisture buildup.
Laundry products can also play a role. Many detergents leave chemical residue on fabric that sits against your vulvar skin all day. Switching to a fragrance-free, dye-free, hypoallergenic detergent helps, and running underwear through the rinse cycle a second time can remove lingering residue. Wash new underwear before wearing it to clear out chemicals from manufacturing and packaging.
When the Smell Is Worth Investigating
A skunky or body-odor-like smell on its own, especially one that comes and goes with stress, exercise, or diet, is typically normal variation. The signs that something else might be going on include a sudden change in odor that doesn’t resolve, unusual discharge (gray, green, yellow, or frothy), itching or burning, pain during sex, or a strong fishy smell that worsens after intercourse. These patterns are more consistent with bacterial vaginosis, trichomoniasis, or other conditions that benefit from treatment.