Is bad breath a sign of kidney failure?
It can be a late sign, but it has many other causes. Blood tests clarify.
Diagnostics
Bad breath and a metallic taste in kidney disease
Why advanced kidney disease can cause a metallic taste and bad breath.
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Short Answer
A build-up of waste products in the blood can cause a metallic taste and an ammonia-like odour on the breath. Good oral hygiene and good dialysis control reduce it.
Medical Facts
- Uraemic breath results from waste products that the kidneys are not clearing.
- It is usually a late sign rather than an early one.
Treatment or Donation Options
- Keep good oral hygiene and rinse the mouth regularly.
- Ensure dialysis is clearing waste adequately — ask your team.
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