When can a bruise become dangerous?

Bruises are usually harmless and go away on their own. However, some bruises can become dangerous, especially if they:

1. Occur on the head or neck: Bruises on the head or neck can be a sign of serious trauma, such as a concussion or skull fracture. If you experience a head or neck bruise, see a doctor immediately.

2. Are accompanied by severe pain or swelling: Severe pain or swelling can indicate that the bruise is deep and may be causing damage to the underlying tissue. If the pain or swelling is severe, see a doctor.

3. Do not heal properly: Bruises that do not heal properly may be a sign of an underlying infection or medical condition. If a bruise does not start to improve after a few days or if it gets worse, see a doctor.

4. Are accompanied by other symptoms: If a bruise is accompanied by other symptoms, such as fever, nausea, or vomiting, it may be a sign of a more serious medical condition. If you experience any of these symptoms, see a doctor.