Swelling can occur throughout the mouth for a variety of reasons. While most conditions that cause mouth swelling are not serious, there are several that are potentially life-threatening. Swelling can be chronic and occur gradually over weeks or months. However, if swelling occurs suddenly in the lips or tongue, it may be due to infection, inflammation, allergy genetic disorders, trauma, malignancy or other conditions.
Swelling is a symptom of many conditions and can be accompanied by the following symptoms:
- Bad breath
- Tingling or burning sensation
- Difficulty swallowing or chewing
- Excessive salivation or drooling
- Dental pain due to dental disease
- Rashes, blisters, ulcers or sores