Section: Abdomen and Digestion
Bad taste in the mouth
Also known as: Metallic taste, Dysgeusia
Bad taste in the mouth symptom guide: what it can mean, possible causes, and when to seek care. Educational only.
Overview
A bad taste in the mouth can come from oral infections, medicines, acid reflux, or dehydration. It often improves once the underlying cause is addressed. Persistent taste changes deserve a clinical check.
Possible causes
- Mouth or gum infection
- Acid reflux
- Certain medicines
- Dehydration
- Sinus or upper airway infection
When to see a doctor
See a clinic if a bad taste lasts more than a few days or comes with pain, fever, or trouble swallowing.
Related conditions
Sources
This guide is put together from these references.