This is my first post on "The Doghouse" part of this forum and I wonder if anyone can help me.
We have had our first litter of pups from our 3 year old Border Terrier and all of the puppies are fit and healthy but I noticed that the sheath on one of the dogs was not fully closed all the way round like the other dogs were. It is hard to explain but it is like there is a slit all the way up it whereas the others only have the hole at the top. Make sense? 
Is this normal?
The vet has looked at them all twice and has ok'd them but I have just noticed this and DH doesn't think there is a problem and doesn't think we need to get the vet again.