Smells Down There: What Your Genitals Are Trying to Tell You

Smells Down There: What Your Genitals Are Trying to Tell You

You’re in the shower, or pulling on clean underwear, or having sex, and you catch a whiff of something. Your brain immediately goes into panic mode: is that normal? Should I be worried? Does everyone else’s genitals smell like this? Welcome to the 2am Google search spiral we’ve all been on.

Here’s what nobody tells you growing up: your genitals are supposed to have a smell. They’re body parts with sweat glands, natural bacteria, and various secretions. Expecting them to smell like nothing (or worse, like synthetic strawberries) is like expecting your armpits not to produce any odour after a workout.

The thing is, those smells can actually tell you loads about your health. Your vulva, vagina, or penis is constantly sending you little updates about what’s happening internally. Sometimes it’s just saying “hey, you’ve had a long day,” and sometimes it’s more like “oi, something needs attention here.”

So let’s demystify genital smells, shall we? No shame, no euphemisms, just straight-talking info about what’s normal, what’s not, and when you might want to check in with a healthcare professional.

Why Do Genitals Have a Smell Anyway?

Before we dive into specific scents, let’s get one thing crystal clear: genitals are meant to smell like genitals. Your vulva and vagina have their own ecosystem (hello, vaginal microbiome), and your penis has sweat glands and skin folds. All of these produce natural scents that are completely normal.

The problem isn’t that genitals have a smell. The problem is that we’ve been taught to feel ashamed about it. Thanks to centuries of stigma and a thriving intimate hygiene industry that profits from our insecurity, many of us grew up believing our genitals should smell like lavender fields or fresh linen. Spoiler: they shouldn’t.

Your genital scent is influenced by loads of factors including your diet, hydration levels, where you are in your menstrual cycle (if you have one), what medications you’re taking, how much you’ve been sweating, and what kind of sex you’ve been having. All of these create subtle variations that are completely normal.

Normal Vulva and Vagina Smells

If you have a vulva and vagina, here’s what’s typically considered within the range of normal when it comes to scent:

Tangy or Sour (Like Yoghurt or Sourdough)

This is one of the most common vaginal scents and it’s actually a sign of good health. Healthy vaginas contain loads of Lactobacilli bacteria (the same helpful bacteria in yoghurt and some sour beers), which produce lactic acid. This keeps your vaginal pH slightly acidic (around 3.8 to 4.5), which protects against infections.

So if your vagina smells a bit like a sourdough starter, that’s genuinely a good thing. It means your vaginal microbiome is doing its job.

Slightly Musky or Earthy

Your vulva contains apocrine sweat glands (the same type you have in your armpits), which produce a thicker type of sweat. When this mixes with the bacteria on your skin, it can create a slightly musky, earthy scent. This is completely normal, especially after exercise or at the end of a long day.

Metallic (Like Pennies or Copper)

Notice a metallic smell during or after your period? That’s just blood. Blood contains iron, which has that distinctive metallic scent. You might also notice this smell after penetrative sex if there’s been any friction that caused light bleeding (which is why lube is your friend, people).

This smell typically goes away once menstruation ends or the bleeding stops.

Different After Sex

Had penis-in-vagina sex recently? You might notice your vaginal smell is a bit different afterwards. Semen has a higher pH than vaginal fluid (around 7.2 to 8), so when it mixes with your vagina’s natural acidity, it can temporarily alter the smell. This usually sorts itself out within a day or so as your vagina’s pH rebalances.

Slightly Bleach-Like or Ammonia-Like

A faint bleach or ammonia smell can happen for a couple of reasons. If you’re dehydrated, your urine becomes more concentrated, which can create this scent. It might also happen if you’ve got a bit of urine on your vulva (completely normal given the anatomy of the area).

However, if this smell is strong and accompanied by other symptoms like a fishy odour, unusual discharge, or irritation, it could indicate bacterial vaginosis (BV). More on that in a bit.

Normal Penis Smells

For those with penises, here’s what’s typically within the normal range:

Sweaty or Similar to Your Armpits

Just like vulvas, penises have apocrine sweat glands in the groin area. After a long day, especially if you’ve been active or it’s been warm, your penis might smell a bit like body odour or your armpits. This is completely normal and just means you’re a human who produces sweat.

The penis and scrotum are often covered by clothing, which means they’re in a warm, enclosed environment where sweat can’t evaporate easily. Add in some pubic hair, and you’ve got the perfect conditions for some natural musk.

Slightly Musty (Like Feet After a Long Day)

Your penis is basically living in a confined space all day with limited airflow, much like your feet in shoes and socks. The combination of warmth, moisture from sweat, and lack of ventilation can create a slightly musty smell. Nothing to panic about, just your penis being a normal body part that gets sweaty.

Urine or Ammonia Scent

If there’s residual urine on your underwear or penis (especially under the foreskin if you have one), you might notice an ammonia smell. This is typically just a hygiene thing rather than a health concern.

When to Be Concerned: Smells That Need Attention

While most genital smells are completely normal, some scents can indicate that something needs medical attention. Here’s what to look out for:

Strong Fishy Smell (Vulva/Vagina)

A strong fishy odour, especially one that gets worse after sex or during your period, is often a sign of bacterial vaginosis (BV). BV happens when there’s an imbalance in your vaginal bacteria, with the “bad” bacteria outnumbering the good Lactobacilli.

BV is incredibly common (around 1 in 3 people with vaginas will experience it at some point) and it’s easily treated with antibiotics from your GP or sexual health clinic. While it’s not an STI, it can increase your risk of getting STIs, so it’s worth getting sorted.

A fishy smell can also occasionally indicate trichomoniasis, a common and easily treatable STI. If you’re sexually active, it’s worth getting tested.

Rotting or Foul Smell (Vulva/Vagina)

This is less common but needs immediate attention. A truly foul, rotting smell might indicate:

  • A forgotten tampon (more common than you’d think, and easily removed)
  • Old menstrual blood from the end of your period
  • In rare cases, a more serious infection

If you’ve got a rotting smell that doesn’t go away after your period ends, see a healthcare provider.

Persistent Unusual Discharge (Penis)

Penises don’t typically produce discharge (apart from pre-ejaculate and semen). If you’re noticing any discharge that isn’t one of these, especially if it has an unusual smell, it could indicate an STI like chlamydia or gonorrhoea. Pop along to a sexual health clinic for testing.

Strong Cheese-Like Smell with Buildup (Penis)

While a small amount of smegma (a mixture of dead skin cells and natural oils) is normal, an excessive buildup that creates a strong smell could lead to balanitis. This is inflammation of the head of the penis and foreskin, and it can be quite uncomfortable.

Balanitis needs treatment, so if you’re experiencing redness, swelling, pain, or a thick buildup under the foreskin, see your GP.

How to Maintain Healthy Genital Hygiene

Good genital hygiene isn’t about making your bits smell like flowers. It’s about keeping them clean and healthy while respecting their natural state. Here’s what actually works:

For Vulvas and Vaginas

Do:

  • Wash your vulva (the external parts) with warm water and mild, unscented soap
  • Clean from front to back to avoid spreading bacteria
  • Wear breathable cotton underwear
  • Change out of sweaty gym clothes or wet swimwear promptly
  • Let your vulva breathe by going commando at night if you fancy
  • Pat dry gently after washing

Don’t:

  • Use douches, vaginal washes, or scented products inside your vagina (your vagina is self-cleaning)
  • Use harsh soaps or heavily fragranced products on your vulva
  • Overwash (once a day is plenty, twice if you’ve been particularly active)
  • Use vaginal deodorants or perfumes
  • Worry about your vagina not smelling like roses

Your vagina maintains its own pH balance and cleans itself. When you disrupt this with unnecessary products, you’re more likely to cause problems than prevent them.

For Penises

Do:

  • Wash your penis daily with warm water and mild, unscented soap
  • If you have a foreskin, gently pull it back and clean underneath (this prevents smegma buildup)
  • Rinse thoroughly to remove all soap
  • Dry properly, including under the foreskin if you have one
  • Wear clean underwear daily
  • Let your penis breathe by sleeping without underwear
  • Change sweaty or damp underwear promptly

Don’t:

  • Use harsh soaps or heavily scented products
  • Forget to clean under your foreskin if you have one
  • Wear the same underwear for multiple days
  • Use “masculine” body washes that promise to eliminate all odour (some smell is normal)

Think of it this way: your arm doesn’t really have a strong smell when it’s clean, and neither should your penis. If you’re fresh out of the shower and there’s still a strong odour, that might be worth investigating.

When in Doubt, Get It Checked Out

If you’re ever worried about a smell, discharge, or any other change in your genital health, it’s always worth getting it checked by a healthcare professional. You can visit your GP, a sexual health clinic, or if you’re experiencing distress around sexual health concerns, consider speaking with a psychosexual therapist who can provide support alongside medical care.

Remember, healthcare professionals have seen and smelled it all. There’s genuinely nothing to be embarrassed about. Your genital health is just health, and you deserve to feel comfortable discussing it and getting the care you need.

The Bottom Line

Your genitals have a smell, and that’s not only normal but necessary. That scent is part of your body’s communication system, letting you know when everything’s functioning as it should and alerting you when something might need attention.

Instead of trying to eliminate all genital odour (which is impossible and unhealthy), focus on:

  • Getting familiar with what’s normal for your body
  • Maintaining gentle hygiene practices
  • Paying attention to changes
  • Seeking help when something feels off

Most importantly, let go of the shame. Your vulva, vagina, or penis is doing exactly what it’s meant to do. It’s not broken, dirty, or wrong because it has a natural scent. It’s just being a functional, healthy body part.

Frequently Asked Questions

Is it normal for my vagina to smell different throughout my menstrual cycle?

Absolutely. Your vaginal smell can change depending on where you are in your cycle due to hormonal fluctuations that affect your vaginal discharge and pH levels. You might notice it’s more musky around ovulation when oestrogen is higher, or more metallic during your period. These subtle changes are completely normal.

Can my diet affect how my genitals smell?

Yes, to some extent. Foods like asparagus, garlic, onions, and spices can affect your body’s odour, including your genital area. However, this doesn’t mean you should avoid these foods. A balanced diet is far more important for your overall health, including your genital health. If you’re eating a healthy, varied diet and maintaining good hygiene, any diet-related scent changes will be subtle and temporary.

Should I use feminine hygiene products to control vaginal odour?

No. Products marketed as “feminine hygiene” washes, douches, or deodorants are not only unnecessary but can actually harm your vaginal health. They can disrupt your vaginal pH balance and microbiome, potentially leading to infections like BV or thrush. Your vagina cleans itself naturally, and your vulva only needs warm water and mild, unscented soap.

I’m trans and on hormone therapy. Will this affect my genital smell?

Yes, hormone therapy can affect genital odour. If you’re on testosterone, you might notice increased body odour overall, including in the genital area, as testosterone increases apocrine sweat gland activity. If you’re on oestrogen, you might notice your sweat becomes less musky over time. These changes are completely normal and just reflect your body’s response to hormones. The same hygiene principles apply regardless of your hormone levels.

My partner says they can taste/smell when I’m about to get my period. Is that possible?

It’s actually quite possible. Hormonal changes before menstruation can cause subtle shifts in your vaginal pH and discharge, which can affect both taste and smell. Some people are more sensitive to these changes than others. If your partner has noticed a pattern, they’re probably picking up on these natural hormonal fluctuations.

Can stress affect my genital smell?

Yes. Stress can affect your body’s odour through several mechanisms. When you’re stressed, you produce more sweat from your apocrine glands (including those in your groin), which can intensify body odour. Stress can also affect your vaginal pH and microbiome, potentially making you more susceptible to infections like BV or thrush, which can change your smell.

Is it normal for my penis to smell different after masturbation?

Yes. After masturbation or sex, there might be residual semen, pre-ejaculate, or lubricant on your penis, which can create a temporary different smell. A quick rinse with water will sort this out. It’s completely normal and nothing to worry about.

How do I bring up concerns about my partner’s genital smell?

This is genuinely tricky and requires kindness and tact. First, consider whether their smell is actually problematic (indicating a health issue) or just their natural body smell. If you genuinely think there might be a health concern, approach it from a place of care: “I’ve noticed something seems different down there. Have you noticed anything unusual? It might be worth getting checked just to be safe.” If it’s just that you’re not used to natural body smells, that might be something to reflect on yourself. Bodies have natural smells, and if you’re in an intimate relationship, part of that intimacy includes accepting your partner’s body as it is.

Can using condoms affect vaginal smell?

Yes, temporarily. Latex condoms can sometimes cause a rubbery smell, and any lubricant on the condom might contribute to a different scent after sex. Additionally, condoms change the environment inside the vagina during sex (compared to unprotected sex), which can result in subtle smell differences. If you notice persistent unusual smells after switching to condoms, you might have a latex sensitivity, and it’s worth trying non-latex alternatives.

Should I be worried if my genital smell changes as I get older?

Hormonal changes throughout your life can definitely affect genital smell. During puberty, you’ll notice more body odour overall as apocrine glands become active. During pregnancy, increased discharge and hormonal changes can alter vaginal smell. During perimenopause and menopause, decreased oestrogen can change your vaginal environment, potentially making you more prone to dryness and changes in smell. These are all normal parts of aging. However, if you notice sudden, significant changes accompanied by other symptoms, it’s worth getting checked out.

Is it normal to be able to smell my own genitals?

Yes, to some extent. You can usually smell your own genital area if you’re in close proximity (like when you’re on the toilet or changing clothes), and that’s completely normal. However, if the smell is so strong that you can smell it through your clothes or from a standing position, or if others can smell it, that might indicate a hygiene or health issue worth investigating.

Can pubic hair affect genital smell?

Pubic hair can trap sweat and bacteria, which might make natural body odours slightly more noticeable. However, pubic hair also serves protective functions, so whether you keep it or remove it is entirely your choice. If you choose to keep your pubic hair, just ensure you’re washing regularly and thoroughly. If you remove it, be aware that this can sometimes increase your risk of irritation and ingrown hairs, which might have their own smell if they become infected.

References

  1. NHS – Vaginal discharge
  2. NHS – Bacterial vaginosis
  3. British Association for Sexual Health and HIV – Guidelines
  4. NHS – Balanitis
  5. Royal College of Obstetricians and Gynaecologists – Vaginal health information
  6. NHS – Keeping your vagina clean and healthy
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