What Causes Broken Capillaries On Chest On Skin(face), How Do We Get Broken Capillaries?

On skin(face), how do we get broken capillaries? - what causes broken capillaries on chest

I have on my face, I do not know what causes and how can I reduce it. I do not make me old and I'm only 17
What are the causes broken capillaries?
And how do I get rid of?