When Your Scent Changes: Menopause, Body Odour and Vaginal Odour

A change in smell can be embarrassing precisely because women are taught that a ‘good’ body should smell like nothing. Menopause can change sweat, skin and vaginal ecology—but odour is a clue, not proof that hormones are the cause.

IN THIS ARTICLE +

1. Where is the smell actually coming from?
2. If your body odour has changed, troubleshoot the source
3. Groin odour isn’t necessarily vaginal odour
4. Vaginal ecology really does change when estrogen falls
5. GSM is much more than vaginal dryness
6. What different vaginal changes can mean
7. Don’t try to make the vagina smell like nothing
8. A low-irritation routine that makes sense
9. What about vaginal probiotics?
10. When assessment makes sense
11. The Maple Menopause bottom line
12. Sources and further reading

Where is the smell actually coming from?

Likely source	Clues	Common possibilities
Underarm or skin fold	Stronger after heat, stress or exercise; improves with washing/clothing change	Sweat plus skin bacteria, fabric retention, medication, diet
Urine	Ammonia-like smell, leakage, urgency or burning	Concentrated urine, incontinence, urinary infection
Vulva	External sweat, urine or irritation on skin	GSM-related sensitivity, dermatitis, retained moisture
Vagina	Fishy, yeasty or otherwise new internal odour; often with discharge	Bacterial vaginosis, candidiasis, STI, retained foreign body or altered vaginal ecology
Rectal source	Odour with bowel leakage or stool staining	Constipation, diarrhoea, pelvic-floor or gastrointestinal issues

Body odour: sweat itself isn’t the whole smell

If you feel as though you smell different in perimenopause or menopause, you’re not necessarily imagining it—but there isn’t a scientifically established universal “menopause smell.” Body odour is more complicated than sweat. Fresh sweat produced by most sweat glands is largely odourless. The characteristic smell develops when sweat, skin oils and other secretions interact with microorganisms living on the skin. Bacteria break down components of these secretions into smaller volatile compounds that we can smell. Two types of sweat glands are particularly relevant:

Eccrine glands are found across most of the body and produce the watery sweat used primarily to cool us down.

Apocrine glands are concentrated in areas such as the armpits and groin. Their secretions contain more proteins and lipids, which skin bacteria can metabolize into odorous compounds.

That distinction helps explain why sweating heavily across your back on a hot day doesn’t necessarily smell the same as stress sweat from your underarms.

Where menopause can enter the picture

Hot flashes and night sweats can dramatically increase how often the skin and clothing become damp. A hot flash itself doesn’t manufacture a special menopausal odour. But more frequent sweating means more moisture, more interaction between secretions and skin bacteria, and more sweat being absorbed into bras, shirts, pajamas and bedding. Stress and anxiety can matter too. Emotional stress activates sweat glands, including apocrine glands in the underarms. Then there is the clothing problem. Synthetic fibres such as polyester can retain skin oils and odour-producing compounds surprisingly well. You may shower, put on a supposedly clean exercise shirt and notice the smell returning almost immediately once the fabric warms and becomes damp again. In that situation, the shirt may be part of the problem, not your body.

If your body odour has changed, troubleshoot the source

Instead of trying to cover everything with fragrance, work out where the smell is actually coming from.

If it’s mainly your underarms

Try:

• Washing normally rather than repeatedly scrubbing.
• Drying the area thoroughly.
• Applying an antiperspirant, rather than relying only on deodorant.
• Trying a clinical-strength antiperspirant if ordinary products aren’t enough.
• Applying antiperspirant to completely dry skin, often at night according to the product directions.
• Changing out of sweaty clothing promptly.
• Washing bras and tops that sit directly against the underarms frequently.
• Checking whether older synthetic tops still smell after laundering.

Deodorant and antiperspirant aren’t the same thing.

Deodorant primarily addresses odour. Antiperspirant reduces sweat production, usually with aluminum-based ingredients. If increased sweating is driving the problem, reducing the amount of sweat reaching the skin may be more effective than simply adding fragrance over it.

If exercise clothes smell even after washing

The culprit may be retained oils and microorganisms in the fabric.

Try:

• Don’t leave damp workout clothing sitting in a gym bag.
• Let sweaty clothing dry if you can’t wash it immediately.
• Wash according to the garment’s care instructions.
• Avoid using excessive detergent, which can leave residue.
• Skip fabric softener on moisture-wicking athletic wear if the manufacturer advises against it; coatings can interfere with the fabric’s performance.
• Periodically replace synthetic workout clothes that remain persistently smelly despite proper washing.

Cotton, linen and some other breathable fabrics may also be more comfortable when hot flashes are frequent, although no particular fabric treats hot flashes themselves.

Groin odour isn’t necessarily vaginal odour

This distinction is important. The groin contains sweat glands, hair follicles and skin folds. It can sweat just like your underarms. Urine leakage can add another source of odour, particularly during exercise, coughing, sneezing or when urgency makes it difficult to reach the bathroom in time. And then there is the vulva, the external genital tissue. None of those is the same thing as odour originating from vaginal discharge. Before treating a supposed “vaginal odour,” it helps to work out whether the smell is actually coming from:

• sweaty groin skin
• underwear
• urine
• an incontinence pad or liner
• vulvar skin
• vaginal discharge

The solution is different for each.

Vaginal ecology really does change when estrogen falls

This is one area where menopause has a well-established biological effect. Before menopause, estrogen helps maintain the vaginal lining and supports the production of glycogen in vaginal epithelial cells. That matters because glycogen and its breakdown products help support Lactobacillus species—the bacteria that commonly dominate the vaginal microbiome during the reproductive years. Lactobacilli help maintain an acidic vaginal environment. As estrogen declines during and after menopause:

estrogen falls → vaginal tissue changes → glycogen availability decreases → Lactobacillus often decreases → vaginal pH rises → the vaginal microbial community becomes more diverse.

Research on the postmenopausal vaginal microbiome consistently finds lower Lactobacillus abundance and greater microbial diversity compared with the typical premenopausal environment. This doesn’t mean bacteria are “bad.” It means the ecosystem has changed.

These hormonal and tissue changes are part of genitourinary syndrome of menopause (GSM).

GSM is much more than vaginal dryness

GSM can affect the vulva, vagina, urethra and bladder.

Symptoms can include:

• Vaginal dryness
• Burning
• Itching or irritation
• Reduced lubrication
• Pain or discomfort with penetration
• Bleeding after sex
• Urinary urgency
• Urinary frequency
• Painful urination
• Recurrent urinary tract infections

Some women may notice a change in discharge or odour at the same time. But this distinction matters:

Odour alone does not diagnose GSM.

And menopause should not become an explanation for every new vaginal smell.

What different vaginal changes can mean

A healthy vagina has its own mild scent, and normal odour varies. What deserves more attention is a distinct change from your usual smell, particularly when accompanied by discharge, itching, pain or irritation.

Fishy odour

A noticeable fishy smell, particularly with thin or increased discharge, can occur with bacterial vaginosis (BV). BV occurs when the usual vaginal bacterial balance changes and certain bacteria become more abundant. Menopause-related changes in vaginal pH and Lactobacillus may complicate the vaginal environment, but you can’t diagnose BV by smell alone. It can be tested.

Thick white discharge + itching

A yeast infection more commonly causes significant itching or burning with thick white discharge. Strong odour is not usually the defining feature of a yeast infection. Repeatedly treating every vaginal symptom with over-the-counter yeast medication can therefore miss the actual problem.

Yellow or green discharge

Yellowish or greenish discharge—particularly with irritation, pain or a new sexual partner—deserves medical assessment because infections including trichomoniasis and other sexually transmitted infections can cause discharge changes. Being postmenopausal doesn’t eliminate the possibility of an STI.

Ammonia or urine-like smell

Consider whether you’re actually smelling urine.

Small amounts of urinary leakage can collect in underwear or pads and become much more noticeable over the course of the day.

Urinary urgency and recurrent urinary problems can also occur with GSM.

If leakage is part of the picture, changing deodorants isn’t going to solve it. Pelvic-floor physiotherapy, continence assessment and treatment of GSM or other urinary conditions may be much more useful.

Don’t try to make the vagina smell like nothing

The vagina is not supposed to smell like vanilla, roses, tropical fruit or “fresh linen.” And it doesn’t need to be internally cleaned. Avoid putting products inside the vagina simply to change its smell, including:

• Douches
• Vaginal deodorants
• Perfumed washes
• Fragranced wipes
• Scented sprays
• Essential oils

Douching can remove protective bacteria and alter the vaginal environment. Fragranced products can also irritate increasingly sensitive vulvar and vaginal tissue. That can create an unfortunate cycle:

notice odour → wash more aggressively → irritate tissue → develop more symptoms → wash even more aggressively.

More cleaning isn’t necessarily better.

A low-irritation routine that makes sense

For sweaty skin

Wash sweaty areas gently and dry thoroughly. Change damp bras, underwear, pajamas and exercise clothing rather than allowing them to remain against the skin for hours. If underarm sweating is the problem, try an antiperspirant. If sweating itself has become excessive or difficult to manage, discuss the sweating—not simply the odour—with your healthcare provider.

For the vulva

Keep care boring. Warm water may be all that’s needed. If you use a cleanser externally, choose a mild fragrance-free product and stop if it causes irritation. Don’t scrub. Don’t wash inside the vagina. Don’t use a product simply because the package says “feminine.”

If urine leakage is contributing

Change damp underwear or pads promptly. Breathable underwear and appropriately designed continence products may help keep moisture away from the skin. Persistent stress or urgency incontinence is treatable. Ask about pelvic-floor physiotherapy, bladder assessment and whether GSM could be contributing.

If dryness or GSM is part of the problem

For mild dryness or discomfort, vaginal moisturizers can be used regularly and lubricants can reduce friction during sexual activity. For persistent GSM, ask about prescription treatment. Low-dose vaginal estrogen is available as creams, tablets/inserts and rings and acts primarily on local vaginal tissues. Estrogen treatment can increase Lactobacillus abundance and change the postmenopausal vaginal environment, although microbiome changes don’t perfectly predict whether an individual woman’s symptoms will improve. Other prescription options may also be appropriate depending on symptoms and medical history.

What about vaginal probiotics?

This is an area where the marketing is currently ahead of the evidence. Because Lactobacillus often declines after menopause, it sounds logical that swallowing or inserting Lactobacillus would simply restore the vaginal microbiome. Biology isn’t quite that simple. A 2026 systematic review examined nine studies involving 751 postmenopausal women. Results for Lactobacillus-based probiotics were mixed, with limited and heterogeneous evidence for improvement in vaginal and urinary GSM symptoms. That doesn’t prove probiotics are useless. It means we don’t yet have strong enough evidence to treat them as a reliably effective solution for GSM or vaginal odour. Be particularly cautious about expensive supplements promising to “balance your vaginal microbiome” without identifying what is actually causing your symptoms.

When assessment makes sense

Arrange an assessment if you notice:

• A distinctly new, persistent or strong vaginal odour.
• A fishy odour that doesn’t resolve.
• Grey, green, yellow, frothy or unusual discharge.
• Thick white discharge with significant itching or burning.
• Pelvic pain or fever.
• Genital sores or lesions.
• Significant burning or painful urination.
• A new sexual partner or possible STI exposure.
• Recurrent symptoms that keep returning after over-the-counter treatment.
• Bleeding after sex.
• Any vaginal bleeding after menopause.

A more generalized change in body odour also deserves attention if it is sudden, unexplained or accompanied by other symptoms such as significant weight loss, fever, jaundice or feeling seriously unwell. Medications, infections, metabolic conditions and other illnesses can sometimes alter sweating or body odour, so a dramatic change shouldn’t automatically be blamed on menopause.

The Maple Menopause bottom line

There isn’t one universal “menopause smell.” But menopause can create several conditions that make odour seem different: more sweating from hot flashes and night sweats, changes in skin and clothing moisture, urinary leakage, and real estrogen-related changes in vaginal tissue, pH and microbiology. The answer isn’t to perfume everything.

Figure out where the odour is coming from first.

Sweaty underarms need a different solution from urine leakage. Urine leakage needs a different solution from GSM. And GSM needs a different solution from bacterial vaginosis or an STI. Sometimes the fix really is a better antiperspirant and a clean shirt. Sometimes it’s vaginal estrogen. And sometimes it’s a swab, urine test or examination that identifies the cause without moral judgment.

Sources and further reading

• SOGC/Canadian Menopause Society Guideline 422b: Menopause and Genitourinary Health
• Government of Canada: Medical Management of Menopause Symptoms
• Canadian Menopause Society clinical-practice guidelines
• Canadian Dermatology Association: Dry Skin and gentle cleansing
• CDC: Bacterial vaginosis—signs, diagnosis and treatment
• NIH/NIDCD: Smell disorders