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Sweat & Odour

A simple guide to why feet smell, why sweat matters, and how to keep feet feeling fresh.

Read on to Discover

What Causes Foot Odour?

Foot odour usually comes from a mix of sweat + bacteria. Feet have more sweat glands than any other part of the body. When sweat builds up, bacteria on the skin break it down and create a noticeable smell.

Common triggers include:

  • Tight shoes that trap heat and moisture
  • Synthetic socks that don’t breathe
  • Long days in closed footwear
  • Hormonal changes, exercise, or stress
  • Poor ventilation or damp shoes

Anything that keeps feet warm and damp increases odour risk.

How to Reduce Foot Sweat

You don’t need complicated routines, just small habits that keep feet clean, dry and ventilated.

Daily steps

  • Wash feet well with soap, especially between toes
  • Dry thoroughly, including between toes
  • Apply a sweat-controlling or absorbent product
  • Change socks at least once a day
  • Choose breathable cotton or moisture-wicking socks

Shoe care

  • Choose shoes made from leather, mesh, or breathable textiles
  • Avoid wearing the same shoes two days in a row
  • Air out insoles or replace them regularly
  • Use shoe deodorizers if neededBacteria

These habits reduce moisture, which is key to preventing odour build-up.

The Science Behind Foot Odour

Foot odour isn’t dirtiness, it’s biology. Your skin naturally hosts bacteria that live on sweat and dead skin cells. When sweat becomes trapped:

  • bacteria multiply
  • they break sweat down into acids
  • these acids cause noticeable smells

Moisture also softens the skin, making it easier for bacteria and fungus to thrive.

A simple way to help: keep feet as dry as possible and use products that absorb sweat and reduce odour-causing bacteria.

When Sweat or Odour Means Something More

Sometimes persistent odour is a sign of something else.

Possible causes:

  • Athlete’s foot: itching, peeling, cracking or a sharp smell
  • Fungal nail infection: thick or discolored nails
  • Hyperhidrosis: excessive sweating that soaks through socks
  • Skin irritation: if redness or soreness keeps returning

Seek advice from a healthcare professional if odour is severe, sudden, or doesn’t improve with basic care.

FAQ: Sweat & Odour

Why do my feet smell even after washing?

Probably trapped sweat in shoes or socks. Bacteria continue breaking sweat down even after washing.

What shoes are best for sweaty feet?

Leather, canvas, mesh trainers, and anything labelled “breathable”.

Can fungus cause foot odour?

Yes. Athlete’s foot often creates a sharp or sour smell.

Does foot powder help?

Antifungal creams are the more effective option because they treat the fungus that causes many foot problems. Foot powder can help absorb moisture, but it does not treat the infection itself.

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