Our dog lived with a 'foster family' for a couple of months whilst I was in hospital a while back and DH had lots on his plate. It was a family vetted by a charity that specialises in these things.
When DH got her back, she had an odd black lump on her muzzle. He didn't notice it at the time and we have no way realistically of asking when/how it appeared.
I've noticed recently that it's getting bigger. It's black in colour, and is about the size of a drawing pin head (although quite sticky-outy) and it has hair growing from it. Do you think it could just be a wart?
She lets me touch it, but she's very docile and let me touch her leg when she snapped her cruchet ligament! So I'm not sure if it really hurts her or not. She does close her eyes though which suggests it may be tender.
She's getting on a bit (she's a ten year old collie cross) and obviously my mind jumps to awful lump theorie. I was thinking of taking her to the vets but I didn't want to be accused of being PFD (precious first dog 
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