Does anyone what this is on my dog.

[goatbarn25]

Does anyone know what this is on my dogs teat??

 

[Baymule]

It looks normal to me. Sometimes skin on teats can be mottled and it's ok. Looks weird, but it's ok.

 

[messybun]

You can always use some iodine to clean it off.
That’s pretty much my answer for everything though.