Domestic violence is aggression that happens in the home when one adult attacks another.
The stresses of Christmas and the fact that more alcohol is around can often lead to tempers boiling over.
In 50% of domestic violence cases, the kids can get hurt too.
And nine in 10 kids are in the same or next room when the violence is going on
Here are some suggestions on coping with domestic violence
Keep yourself safe. Find a safe place - like a bedroom - where you can hide until the violence is over.
Only step in to help the person who is being hurt if it means you will not place yourself at risk
Talk to someone you trust about what's happening at home. If you want independent help, contact a service like Childline on 0800 1111
Try to get the person who is being hurt to seek help from organisations such as Women's Aid, Refuge and Parentline Plus.
If the situation gets really bad, get out of the house and find help. Go and tell a neighbour or call the emergency services on 999