Short answer: Many women sweat more around the menopause, mainly because of hot flushes and night sweats, and more sweat gives skin bacteria more to work on. Skin oils also change with age, and nonenal, a smell compound that comes from skin oil, may be one factor among several. Breathable clothes, daily washing and fresh bedding help most. If your body odour changes suddenly or strongly, see your GP.
It is not an easy thing to bring up, even with friends. Perhaps your nightdress smells different in the morning, or a blouse feels ready for the wash sooner than it used to. This article explains why body odour can change in midlife and what you can do about it day to day. It stays at the level of comfort and personal care; medical questions belong with your GP.
Why body odour can change around the menopause
According to the NHS, the menopause usually happens between the ages of 45 and 55, although it can come earlier. The years of change leading up to it are called the perimenopause. The NHS says symptoms usually last for 7 to 9 years, sometimes longer, and can change over time (NHS: menopause symptoms). When it comes to how you smell, three things matter most.
1. Hot flushes and night sweats
The NHS describes hot flushes as a sudden feeling of heat in the face, neck and chest, sometimes with heavy sweating, lasting several minutes (NHS: menopause symptoms). When they happen at night, they are called night sweats, and they can leave nightwear and bedding damp.
More sweat does not automatically mean more smell. Body odour is produced when bacteria on the skin break down sweat, as nidirect, the Northern Ireland government's information site, explains. The longer sweat sits on skin or in fabric, the more time those bacteria have. That is why a damp nightdress or a blouse worn through a warm day can smell stale.
2. Skin oil and nonenal: one factor among several
The oily film on your skin also changes with age. In 2001, Japanese researchers found a compound called 2-nonenal, which has a greasy, grassy smell, in the body odour of participants aged 40 and over, but not in younger people (Haze et al., 2001, Journal of Investigative Dermatology). A later Japanese study measured more 2-nonenal coming from the back of the neck with age, in women as well as men (Kimura et al., 2016, Journal of Chromatography B).
Nonenal is not a menopause symptom as such. It is linked to age, and it simply tends to show up during the same stage of life. If you would like to know how it forms, read what is nonenal?
3. Other things that play a part
The NHS body odour page lists hormonal changes among the things that can make body odour worse, along with exercise and hot weather, being overweight, some medical conditions and some medicines. It also suggests not eating too much strong-smelling or spicy food and not drinking too much alcohol.
To be honest about the evidence: very little research looks specifically at body odour around the menopause. When we searched PubMed on 11 October 2026, we found no study that maps it properly. This article therefore brings together what is known about sweat, skin oil and ageing.
What can help day to day
You don't need to do everything at once. Pick what fits your situation.
| Situation | What helps |
|---|---|
| Hot flushes during the day | Light layers in cotton, silk or fine wool, so you can take one off and sweat can dry |
| Night sweats | A cool bedroom, a fan, cotton sheets, a fresh nightdress within reach, and bedding washed more often |
| Smell linked to skin oil | Daily washing with soap, with care at the back of the neck, behind the ears, the chest and the back |
| Underarms and skin folds | Wash and dry thoroughly; an antiperspirant helps with underarm sweat |
| Clothes | Natural fabrics, not too tight, and straight into the wash after a sweaty day |
A simple daily routine
- Wash every day with soap and water. Soap helps wash away the oily residue that carries the smell. Take your time over the back of the neck, under the breasts, the back and behind the ears.
- Dry thoroughly, especially in skin folds.
- Dress in breathable layers. The NHS suggests lightweight clothing for hot flushes, and its body odour advice favours natural fabrics such as cotton, wool and silk over tight, man-made ones.
- Keep a spare top to hand. A fresh vest or blouse in your bag or at work can be a real comfort.
- Change bedding more often, pillowcases especially, and open the bedroom window each morning.
- Notice your triggers. The NHS suggests that cutting down on spicy food, caffeine, hot drinks, smoking and alcohol may help with hot flushes (NHS: things you can do). If one of these sets you off, try going without it for a while.
The NHS notes that a pharmacist can advise on stronger antiperspirants, sweat shields for clothing and gentler soap substitutes if your skin is sensitive. If you are thinking about a soap with persimmon extract, read what is and isn't known in does persimmon soap work? For getting smells out of nightwear, sheets and mattresses, see how to get the smell out of clothes and the home.
Tip: We all get used to our own smell. Sleep on a fresh pillowcase for a few nights, then smell it. It is an easy way to tell whether a change in routine is making a difference.
When to see your GP
Body odour changes around the menopause are usually harmless. Even so, make an appointment if:
- your body odour changes suddenly or strongly from how it usually smells;
- you suddenly start sweating much more than usual;
- you have night sweats regularly and they wake you up or worry you;
- night sweats come with a high temperature, shivering, a cough or diarrhoea, or you are losing weight without trying (NHS: night sweats);
- menopause symptoms are affecting your sleep or daily life and you would like to know your options.
Your GP can check whether something else is going on and talk through what might help. In the US, speak to your doctor.
Frequently asked questions
Is it normal to smell different during the menopause?
Yes, it happens. Many women sweat more because of hot flushes, and skin oils change with age as well. There is nothing to be embarrassed about.
Will it settle down?
Menopause symptoms don't usually last for ever: the NHS says they typically last 7 to 9 years, sometimes longer. Changes in skin oil are part of getting older, so a regular washing routine stays useful afterwards too.
Does deodorant help?
An antiperspirant helps with underarm sweat, and a deodorant with underarm odour. The smell linked to skin oil also comes from the neck and back, where washing with soap does more.
Which fabrics are best?
Natural fibres such as cotton, silk and wool let sweat dry more easily than tight synthetic fabrics. Cotton sheets are a good choice for bed.