Why Does Your Period Smell Different? What's Normal and What's Not?
Team WythHer · · 3 min read
Period blood naturally has a mild, slightly metallic smell because blood contains iron. A stronger smell usually builds up when a pad is worn too long. A strong fishy smell, or any smell with itching, burning or unusual discharge, isn't a normal period smell and is worth checking with a doctor.
Ever noticed a different smell during your period and wondered, "Wait… is that normal?" 👀 First things first: period fluid naturally has a smell, and that doesn't mean you're unhygienic. Every body has its own scent, and it can change from day to day.
Why does period blood smell?
Period fluid isn't just blood. It's a mix of blood, tissue from the lining of the uterus, and vaginal secretions, along with the natural bacteria that live in the vagina. Blood contains iron, which is why it can smell slightly metallic, a bit like copper or coins. The smell can vary through your period and from person to person.
Common period smells and what they mean
- Metallic or coppery: normal. It comes from the iron in blood.
- Mild, earthy or musky: normal. That's your body's natural scent mixing with menstrual fluid.
- Stronger or "off" by the end of the day: usually a pad that's been worn too long. Changing more often helps.
- Strong and fishy: not a typical period smell. It can be a sign of bacterial vaginosis (BV), a common and treatable imbalance of vaginal bacteria.
- Very strong or rotten: see a doctor promptly. Something left inside the vagina, like a forgotten tampon, can cause this.
Why does the smell get stronger?
Moisture, sweat and menstrual fluid sitting in a pad for hours give bacteria time to multiply, and that's what makes odour more noticeable. Heat, tight clothing and synthetic underwear can add to it. None of this means your body is dirty. It just means it's time for a fresh pad.
How to manage period odour (without perfumes)
- Change your pad regularly, roughly every 4 to 6 hours, and more often on heavy days. See how often you should change your pad.
- Gently wash the outer genital area (the vulva) with plain water once or twice a day. The vagina cleans itself.
- Skip douches, vaginal deodorants and scented intimate washes. They can upset your natural balance and irritate sensitive skin.
- Choose breathable cotton underwear and change it if it gets damp.
- Choose unscented pads. Fragrance doesn't stop odour; it just covers it, and it can cause irritation.
That's why the pads in our Moody Box have no fragrance, no sulphates and no bleach, with a virgin cotton top layer that helps you stay fresh and dry.
When should you see a doctor?
Don't try to mask a smell that worries you. Speak to a doctor or gynaecologist if you notice:
- A strong fishy smell, especially with thin, white or grey discharge.
- Itching, burning, soreness or pain when you pee.
- Discharge that's green, yellow, frothy or looks unusual for you.
- Pelvic pain, fever, or bleeding between periods or after sex.
- A smell that stays strong even after your period ends.
Frequently asked questions
Is it normal for period blood to smell?
Yes. Period blood usually has a mild, slightly metallic smell because of the iron in blood. A gentle, earthy smell is normal too.
Why does my period smell fishy?
A strong fishy smell isn't a typical period smell. It's a common sign of bacterial vaginosis (BV), which is easily treated, so it's worth seeing a doctor rather than covering it up.
Why does my period smell worse by the end of the day?
Menstrual fluid and sweat that sit in a pad for hours let bacteria build up. Changing your pad every 4 to 6 hours usually fixes it.
Should I use scented pads or an intimate wash to stop the smell?
No. Fragrances and scented washes can irritate sensitive skin and disturb the vagina's natural balance. Plain water on the outer area and unscented pads are enough.
A little reminder 💗
Your body isn't supposed to smell like perfume. A natural period smell is normal, and it isn't something to be ashamed of. Freshness isn't about smelling like flowers. It's about feeling comfortable in your own body. 💗
Sources
This article is for general information. It isn't a substitute for advice from your doctor, especially if something feels different for you.