It is possible that dogs produce puppies with foot deformities due to genetic factors. If the dog parents carry the gene that causes the deformity, the puppies may have deformities. These genes are inherited and malformations develop. Inbreeding may also increase the risk of genetic abnormalities, leading to deformities in puppies.

In addition, if the female dog needs sufficient nutrients during pregnancy, especially calcium, phosphorus and vitamin D, etc., to support the normal development of the puppy. A lack of these key nutrients may lead to abnormal bone development in your puppy.