A Shetland Sheepdog's record book matters almost as much as its examination. This small herding breed carries several inherited threads in its background, alongside ordinary joint and hormone changes that arrive with age, and some of the most important facts about an individual dog are results filed by a breeder, a laboratory or an eye specialist long before any sign appears at home. The sections below sort what you watch for yourself from what only testing can reveal, so each result lands in the right place and reaches every vet who treats your dog.
Eyes and Genes: Collie Eye Anomaly and MDR1
Collie eye anomaly is an inherited condition affecting the structures at the back of the eye, present from puppyhood. It ranges in severity, and an affected dog can still see well, which is why examination matters more than home guessing: a vet or eye specialist examines the back of the eye directly, and breeders screen puppies before they go to new homes. Ask what eye screening a puppy has had and keep the result. At home, report bumping into objects, hesitation in dim light, or reluctance on unfamiliar routes, since vision change from any cause deserves assessment in a breed with a known eye condition.
MDR1 gene drug sensitivity is a genetic difference that affects how the body handles certain medicines. It is not treated and it causes no symptoms by itself; its importance is that a vet must know a Sheltie's MDR1 status before prescribing medicines the gene affects. Testing is a laboratory matter arranged through your vet or breeder, and the result, whether clear, carrier, or affected, should sit at the front of your dog's records and be stated to every clinic, including emergency and locum vets who have never met your dog. Never withhold or substitute a prescribed medicine over MDR1 worry; raise the status and let the prescribing vet decide.
Skin and Muscle: Dermatomyositis, Plus Bleeding and Hips
Dermatomyositis is a skin and muscle condition seen in young Shelties. Early signs include crusting sores or hair loss on the face, ear tips, feet, and tail tip, sometimes with muscle weakness, a stiff gait, or difficulty eating and swallowing as it progresses. Sores in that distribution on a young dog of this breed deserve examination rather than home creams, because a vet needs to assess skin and muscle together and rule out lookalike causes.
Von Willebrand disease is an inherited bleeding disorder in which blood clots less effectively. Watch for bruising without a clear cause, bleeding gums, nosebleeds, or bleeding that runs long after a cut or procedure, and make sure clotting status is known before any surgery. Hip dysplasia shows as hind-end stiffness, bunny-hopping, and reluctance on stairs, assessed by examination and imaging. Hypothyroidism, an underactive thyroid, creeps in as weight gain, low energy, coat thinning and dry skin, and is screened for through blood work when signs fit.
The Gallbladder: Mucocele
Gallbladder mucocele is a build-up of thickened material in the gallbladder that a vet may find on blood work or abdominal imaging, sometimes during investigation of something else. Signs, when they appear, include vomiting, abdominal pain, loss of appetite, and low energy, and they warrant prompt examination because gallbladder problems can escalate. This condition is a strong example of why routine senior blood work matters in the breed: findings caught on a scheduled panel start a monitored conversation, while the same problem found in an emergency starts a harder one. Eye results, MDR1 status, clotting notes, thyroid values and imaging reports span a whole lifetime of care, and KinsLe holds them together in its Pet Passport so each new vet starts informed.