What should you know about Ludwig's angina?

Despite its name, Ludwig's angina is not the heart-related chest pain called angina. It is a deep infection in the floor of the mouth, often involving tissues beneath the tongue and around the lower jaw. A tooth infection, dental procedure, mouth injury, or salivary-gland infection can allow bacteria to spread into these spaces.

Swelling may push the tongue upward or backward. This can make swallowing, speaking, and breathing progressively harder. The condition can worsen quickly, so a person may need assessment even before severe breathing difficulty develops.

Seek urgent medical care if Ludwig's angina is suspected. Keep the person sitting upright, avoid pressing on the swollen tongue or throat, and do not give food or drink if swallowing is unsafe. Do not wait for a routine dental appointment or try to drain the swelling at home.

In hospital, clinicians focus first on keeping the airway open. They may give antibiotics through a vein, provide fluids, examine the mouth and neck, and arrange dental treatment or drainage when an abscess is present. An airway specialist or surgeon may be involved if swelling threatens breathing.

Call emergency services immediately for noisy or difficult breathing, blue or grey lips, inability to swallow saliva, drooling, rapidly increasing swelling under the jaw, a muffled voice, or inability to open the mouth normally. These signs can indicate that the airway is becoming narrowed.

Fever, severe tooth or jaw pain, a swollen floor of the mouth, and a tongue that appears raised are also reasons for same-day urgent assessment, especially when they occur together. Chest tightness is a different symptom pattern; chest symptoms should be assessed separately rather than assumed to be Ludwig's angina.

Ask what is causing the infection, whether the airway is at risk, which antibiotic is being used, and whether a tooth needs treatment or removal. Also ask what changes should prompt immediate help after discharge and when follow-up examination is needed.