Help make Alexa smarter on Alexa Answers. Sign in with Amazon

Science

How does a bruise form?


A bruise, or contusion, appears on the skin due to trauma. Examples of trauma are a cut or a blow to an area of the body. The injury causes tiny blood vessels called capillaries to burst. Blood gets trapped below the skin's surface, which causes a bruise.

{{ relativeTimeResolver(1569032339469) }}

LIVE
Points points 64
Rating 0

Similar Questions
Sign in to view all similar questions

Join Alexa Answers

Help make Alexa smarter and share your knowledge with the world

LEARN MORE