There's been a big rise in the number of people being treated in hospital for dog bites in England.
New figures show nearly 3,800 people went to hospital after being attacked by a dog last year - an increase of nearly half over the past four years.
Some politicians say there are too many irresponsible dog owners and want the laws on owning dogs to be changed.
But the government says the law, which already includes a ban on some dangerous breeds, is harsh enough.
Nine-year-old Chloe was bitten on the face at a neighbour's house when she went into the kitchen to ask her mum for a drink.
Chloe needs regular treatment on her cheek, where the dog bit her
Her mum, Nicola, said Chloe's scars were healing well, but her daughter was now terrified of dogs.
There are things you can do to protect yourself from dog attacks, such as standing still and trying to stay calm.
At the moment, four types of dog are banned in the UK - the pit bull terrier, Japanese tosa, dogo Argentino and fila Brasileiro.