What’s this on my dog’s muzzle?

[noitsnotteatimeyet]

My dog’s developed a little growth on his muzzle - a couple of weeks ago it was a tiny speck but although it’s still tiny it’s definitely grown. Any ideas what it is? He’s a four year old Toller

Wart.

Don't worry.

Looks like a wart. Does it cause any pain or discomfort? My folks' dog has several of these, just random little warts everywhere. If it isn't causing pain etc i'd say monitor it, if it changes straight to the vet.
If he is bothered by it then vet no question

It’s not bothering him at all but one of his relatives has just had a mast cell tumour removed and I scared myself silly by googling ...

Ask your vet if it worries you, otherwise you will sit and Google and worry.