Why have you got a sore tongue and nasty taste in the mouth?

Sore tongue and nasty taste in the mouth can have several causes, including:

1. Oral hygiene: Poor oral hygiene, such as infrequent brushing and flossing, can allow bacteria and plaque to build up on your tongue and in your mouth, causing inflammation, a sore tongue, and a bad taste.

2. Dry mouth: A dry mouth can occur due to various factors like dehydration, certain medications, or medical conditions. Saliva helps wash away bacteria and food particles from the mouth, and when there's not enough saliva, it can lead to a buildup of bacteria, causing a sore tongue and a foul taste.

3. Smoking and tobacco use: Smoking and tobacco use can irritate the tongue and mouth, leading to soreness and an unpleasant taste.

4. Food allergies and sensitivities: Certain food allergies or sensitivities can cause a sore tongue and a metallic or bitter taste in the mouth.

5. Medications: Some medications, such as antibiotics, can have side effects that include a sore tongue and taste disturbances.

6. Medical conditions: Various medical conditions, including diabetes, acid reflux, and certain vitamin deficiencies, can cause a sore tongue and a bad taste in the mouth.

7. Infections: Viral or bacterial infections, such as a yeast infection, can cause a sore tongue and a foul taste.

8. Burning the tongue: Consuming hot foods and beverages can burn your tongue, causing soreness and discomfort.

9. Oral thrush: This is a yeast infection that develops in the mouth, often characterized by a white or creamy coating on the tongue and a burning or sore sensation.

10. Injury to the tongue: An injury to the tongue, such as biting it, can cause soreness and discomfort.

If you experience a sore tongue and a nasty taste in your mouth that persists or is accompanied by other symptoms, it's essential to see a healthcare provider for proper diagnosis and treatment.