"This can occur due to genetic causes or infections in the mother during development," Dr. Laurie Siperstein-Cook, a veterinarian at the Sacramento SPCA, told The Dodo. "The signs include head bobbing, clumsiness and falling. Some improvement occurs as the puppy learns to accommodate. There is no treatment, but the signs do not worsen and affected dogs have normal lifespans."
"Generally, animals with this disorder may need to avoid stairs and climbing on furniture, and it's best to keep them on a leash when outdoors," Erika Loftin, emergency veterinarian and critical care specialist at DoveLewis Emergency Animal Hospital, told The Dodo. "These pets can be prone to accident-related injuries, like chipped teeth or broken nails, so it's a good idea to 'baby proof' their area as much as possible. This is all part of dealing with a special needs pet."
Petey is already figuring out how to cope with his disability.