A large, blue or purple bruise under the skin that changes color over time before fading.

Apply to the bruise an ice pack wrapped in a thin towel. Leave it in place for 20 minutes. Repeat several times for a day or two after the bruise appears. This helps to reduce the swelling and pain. Consider taking a nonprescription pain reliever if needed.

See a healthcare professional if the bruise:

• Keeps coming back or is long lasting.
• Begins suddenly or seems to develop for no reason.
• Has a lump forming over it, which may be a sign of pooling blood.
• Is suspected to be the result of child abuse, domestic violence or elder abuse.