Please come across just below posting on Tibetan Spaniel dog.
Tibetan Spaniel dog pictures
Many breeds result from a small number of animals, which leads to mating inside kinship. The effect is different hereditary (genetic) illnesses that are common in some breeds, for example, hip dysplasia (specifically in German shepherds), epilepsy, ataxia, oculoskeletal dysplasia, and others.
Origin of your dog
The dogs can be split into crossbreeds and breeds with a pedigree and a new breed without a pedigree.
Non-pet breeds (hybrids): they are the consequence of an unintended mating (crossing) of different breeds of dogs or dogs whose source is unknown.