The appearance of a deformed dog may vary depending on the type and severity of the deformity. Here are some common deformities and the changes in appearance they can cause:

Skeletal deformities: This can cause your dog’s limbs to be of different lengths, bent or twisted, or for the spine to take on an abnormally curved or twisted shape. These dogs may have difficulty walking or have abnormal posture.

Facial deformities: May include abnormal eye position, nose deformation, or problems with oral structure. For example, certain deformities may cause a dog's mouth to fail to close completely, or the eyeball to protrude.

Underdeveloped or abnormally positioned organs: Internal organs may be involved, such as the heart, lungs, or liver. These conditions are often not easily visible from the outside, but may affect your dog's overall health and function.

Coat Abnormalities: Certain malformations can cause your dog’s hair to be unevenly distributed, sparse, or grow abnormally.

Abnormal body shape: Malformations may cause a dog to have abnormal body shape, such as being too short or too large, inconsistent with the normal standards of its breed.