Quote:
    
					Originally Posted by  mimimomo     Waaaat? I can't believe I'm reading this...chachi where have you been, in another planet?!   
There are diseases, inherited diseases (aka genetic disorders, congenital defecrs) that cause 'stunted' growth. Hydrocephalus in TOY breed dogs:  Hydrocephalus in Toy Breed Puppies | VCA Animal Hospitals 
Liver shunt which is prevalent in the Yorkshire Terrier & it stunts growth. Leggs calve perthes which is also very common in the breed, how many threads do we have on here about FHO surgery???    |  
 
  There are diseases common to yorkies that smaller yorkies can get.  Do smaller yorkies get these conditions more commonly than a larger yorkie there are no studies to indicate they do.  The only disorder I have found where the smaller yorkie might be more susceptible to getting is hydrocephalitus and you dont even hear of smaller yorkies having that very commonly