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Body odor in menopause: causes and what helps

Body odor can change in menopause mainly because hot flashes and night sweats mean more sweat for skin bacteria to break down. Antiperspirants, daily washing and treating hot flashes are the main steps, and some smells are a reason to see a doctor.

See a doctor if you notice a fruity or bleach-like smell or a sudden change in odor or sweating. Heavy sweating at rest or in sleep, or frequent skin infections, also need checking. Vaginal odor with unusual discharge, itching, burning or bleeding should also be checked.

What it is and how common it is

Many women notice they sweat more or smell different around menopause. For some it is stronger underarm odor, and for others a change in vaginal odor.

Sweat itself has almost no smell. Odor forms when bacteria on the skin break it down.1 The apocrine glands in the armpits and groin make the type of sweat most linked to odor.1

Your sense of smell can also change, so you may notice an odor that others do not.2

Why it happens in menopause

Hot flashes and night sweats increase sweating, which gives bacteria more to feed on.1,2 In menopause, the range of temperatures the body finds comfortable narrows, so sweating starts sooner.2

Lower estrogen leaves testosterone relatively higher. Some doctors think this makes sweat smell stronger, but this is an explanation rather than a proven cause.2

Stress and anxiety also trigger sweating.2 Lower estrogen thins vaginal tissue too, which can change discharge and make infections more frequent. Both can change vaginal odor.3,4

What else can cause it

Some odor changes point to a health problem. A doctor may check for:1

  • diabetes, since a fruity smell can be a sign of a serious complication called diabetic ketoacidosis
  • kidney or liver disease, which can cause a bleach-like smell
  • an overactive thyroid
  • skin or other infections
  • hyperhidrosis, a condition that causes heavy sweating
  • medicines and supplements that change how sweat smells

Food plays a part too. Garlic, onions and cabbage-family vegetables can change odor, and spicy food, caffeine and alcohol can increase sweating.1 Vaginal odor with unusual discharge or itching may be an infection or another vulvar condition.3,4

Everyday measures

  • Wash daily. An antibacterial soap can help on the underarms.1 Around the vulva, use plain water or a mild unscented wash, since perfumed and antibacterial soaps can irritate.5
  • Use an antiperspirant. Products labeled antiperspirant reduce sweat. Deodorants only cover odor.1 A pharmacist can suggest stronger products.2
  • Choose breathable clothes. Loose cotton or moisture-wicking fabrics help, and so does changing after a sweat.1,2
  • Stay cool. Fans, cooling sprays and light nightwear can make hot flashes less sweaty.2
  • Skip vaginal douches and perfumed products. They can irritate delicate tissue.5
  • Manage stress. Stress is a common sweat trigger.1,2

What helps: options rated

OptionEvidenceWhat the research shows
AntiperspirantsSome evidenceThey reduce sweat, which leaves bacteria less to break down. They are the standard first step, though we found no trials in menopausal women.1,2
Daily washing and breathable clothingSome evidenceStandard medical advice based on how odor forms, rather than on trials.1
Treating hot flashes and night sweatsSome evidenceHormone therapy is the most effective treatment for hot flashes, so it may reduce sweat-related odor.2 We found no trials that measured odor directly.
Medical treatments for heavy sweatingSome evidencePrescription antiperspirants, botulinum toxin injections and other treatments are used for hyperhidrosis. They are for heavy sweating, not everyday odor.1,2
Stress managementWeak evidenceStress and anxiety trigger sweating, but we found no trials of stress management for body odor.2

Ratings explained: how we rate. Always talk to a doctor or pharmacist before starting a medicine or supplement.

Related

Sources

  1. Body odor, Cleveland Clinic
  2. Body odour, My Menopause Centre (2021)
  3. The 2020 genitourinary syndrome of menopause position statement, The North American Menopause Society (2020)
  4. Vaginal atrophy (genitourinary syndrome of menopause), Mayo Clinic Care Network content (2024)
  5. Mayo Clinic Q&A: treatment for vaginal dryness for menopausal women, Mayo Clinic News Network