Should i go to doctor if dog has bit me?

i just thought that i have not been bitten through the skin and no blood is showing but after checking properly, i just saw a scratch made by dog yesterday and the skin has been broken and blood is showing, its a little scratch but should i go to doctor as i am getting very worried now thinking the dog might have... show more i just thought that i have not been bitten through the skin and no blood is showing but after checking properly, i just saw a scratch made by dog yesterday and the skin has been broken and blood is showing, its a little scratch but should i go to doctor as i am getting very worried now thinking the dog might have rabies etc. At first i just thought as the dog has not bit me through skin and as there is no sign of blood i will be fine but after a closer look the other scratch he has made which tore the layer of skin and blood showing has worried me like hell. I remember having a tetnus injection in around 2008/2009 but not sure what exactly i should do.
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