Body odor can become more noticeable with age, but it isn’t simply something that women should accept as an unavoidable part of getting older.

Sometimes an unpleasant smell comes from ordinary habits—such as not drinking enough water, wearing damp clothing, or overlooking areas where bacteria can accumulate. In other cases, a persistent change in odor can be a clue that something medical deserves attention.

The good news is that many causes are manageable.

Here are 8 everyday habits and overlooked factors that may contribute to unpleasant body odor in older women, along with simple ways to address them.

1. Not Drinking Enough Water

Older adults may not always feel thirsty as strongly as they did when they were younger.

When fluid intake is too low, urine can become more concentrated and develop a stronger smell. Dehydration can also contribute to dry mouth, which may worsen bad breath.

Try this:

Drink fluids regularly throughout the day unless a healthcare professional has instructed you to restrict fluids because of a medical condition.

Water doesn’t have to be the only option. Milk, soups, and many fruits and vegetables also contribute to daily fluid intake.

2. Wearing the Same Clothes Too Long

Even clean-looking clothing can accumulate sweat, skin oils, bacteria, and odors.

Bras, undershirts, socks, nightwear, and other garments that sit close to the skin may need regular washing, particularly after sweating.

Try this:

• Change underwear and socks regularly.
• Wash clothing that becomes sweaty.
• Don’t put damp clothes back into the closet.
• Allow shoes to dry thoroughly between uses.

Natural-fiber or moisture-managing fabrics may also feel more comfortable for some people.

3. Overlooking Skin Folds

Warm, moist areas of the body can provide an environment where bacteria and fungi multiply.

This can happen beneath the breasts, around the groin, between skin folds, or under the abdomen.

A persistent odor accompanied by redness, itching, pain, moisture, or a rash may indicate an infection or another skin problem.

Try this:

Gently wash affected areas and dry them thoroughly. Avoid aggressive scrubbing, which can irritate the skin.

If a rash or strong odor persists, seek medical advice rather than repeatedly applying scented products.

4. Neglecting the Mouth and Dentures

Bad breath isn’t always caused by what someone ate.

Plaque, gum disease, dry mouth, cavities, poorly cleaned dentures, and certain medications can all contribute to persistent mouth odor.

Dry mouth is particularly common with some medications and can reduce the mouth’s natural ability to clear bacteria.

Try this:

• Brush teeth twice daily.
• Clean between teeth regularly.
• Clean dentures according to dental recommendations.
• Have regular dental examinations.
• Stay adequately hydrated if medically appropriate.

Persistent bad breath deserves a dental or medical evaluation rather than simply being covered with mints.

5. Wearing Shoes That Don’t Dry Properly

Feet contain many sweat glands, and enclosed shoes can trap moisture.

Bacteria can then break down sweat and produce unpleasant odors.

Try this:

Rotate shoes when possible and allow them to dry completely between uses.

Change socks regularly, especially after sweating, and wash feet daily while drying carefully between the toes.

If there is persistent itching, peeling, cracking, or a strong odor, athlete’s foot or another skin condition may be involved.

6. Using Fragrances Instead of Washing

Perfume, body spray, and strongly scented lotions can temporarily mask an odor, but they don’t remove its underlying cause.

Combining perfume with sweat or bacterial odors can sometimes make the smell even more noticeable.

A better approach:

Start with gentle cleansing and clean clothing. Use fragrance afterward if you enjoy it.

For sensitive or dry skin, avoid excessive use of harsh soaps or heavily fragranced products.

7. Not Changing Bedclothes and Towels Frequently Enough

Sheets, pillowcases, towels, and blankets can gradually collect sweat, skin oils, and microorganisms.

This can be particularly noticeable if someone sweats heavily at night.

Try this:

Wash towels and bedding regularly and allow them to dry thoroughly before storing them.

If night sweats are frequent or severe, however, don’t simply blame the bedding. Persistent night sweating can sometimes be associated with medications, hormonal changes, infections, or other medical conditions and may warrant medical evaluation.

8. Ignoring Changes in Urine, Vaginal, or Other Body Odor

A sudden or persistent change in odor may occasionally be a sign of an underlying health problem.

For example, a strong urine smell can occur with concentrated urine, certain foods or medications, or sometimes a urinary problem. Vaginal odor can also change with infections or changes in the vaginal environment.

After menopause, declining estrogen can cause changes in vaginal tissues and symptoms such as dryness or irritation. A new or unpleasant vaginal odor—especially when accompanied by discharge, itching, pain, or bleeding—should be evaluated by a healthcare professional.

Don’t try to diagnose the cause based on odor alone.

What About the “Old Person Smell”?

There is a real chemical phenomenon sometimes associated with aging skin involving a compound called 2-nonenal.

As skin ages, changes in skin oils can alter the compounds produced on the skin’s surface. This can contribute to a different natural body scent in some older adults.

That doesn’t mean poor hygiene is responsible, and it doesn’t mean everyone develops a distinctive aging-related odor.

Gentle cleansing, clean clothing, adequate hydration, and appropriate skin care can help manage ordinary body odors.

When Should You See a Doctor?

A new or persistent unusual odor shouldn’t automatically be blamed on aging.

Consider speaking with a healthcare professional if the odor:

• Appears suddenly without an obvious explanation
• Persists despite good hygiene
• Comes with fever or feeling unwell
• Occurs with unexplained weight loss
• Is accompanied by a persistent rash or skin changes
• Comes with unusual vaginal discharge, pain, or bleeding
• Occurs with painful or unusually frequent urination
• Is accompanied by severe night sweating
• Is associated with a significant change in breath odor

Certain medical conditions and medications can affect body odor, so a persistent change deserves attention.

Simple Daily Habits for Fresher, Healthier Skin

A few basic habits can make a significant difference:

1. Bathe or shower regularly, adjusting frequency to your skin and activity level.
2. Wash and dry skin folds carefully.
3. Change underwear, socks, and sweaty clothing regularly.
4. Keep feet clean and dry.
5. Brush and floss regularly and care for dentures properly.
6. Drink adequate fluids unless medically restricted.
7. Wash towels and bedding regularly.
8. Review medications with a healthcare professional if you notice a new odor after starting one.
9. Avoid relying on perfume to hide persistent odors.
10. Have unexplained changes checked rather than assuming they’re simply part of aging.

Final Thoughts

Unpleasant body odor in older women isn’t necessarily a hygiene problem—and it isn’t something that should automatically be dismissed as “just getting older.”

Everyday habits such as inadequate hydration, damp clothing, poor foot care, or overlooking oral hygiene can contribute to odor. But persistent or unusual smells can sometimes point to dental, skin, urinary, vaginal, or other health issues.

The goal isn’t to eliminate every natural body scent. It’s to recognize new or persistent changes, take sensible care of the skin and mouth, and seek medical advice when something doesn’t seem right.

Aging brings many changes, but unexplained body odor doesn’t have to be one that you simply live with.