The short answer
Yorkies are fairly hardy and long-lived (~12 to 16 years), but as a toy breed they have characteristic issues. The biggest day-to-day ones: dental disease (Yorkies are among the most dental-prone breeds, brush and get cleanings) and tracheal collapse (a weak windpipe causing a honking cough, so use a harness, not a collar). Also luxating patellas (slipping kneecaps, keep the dog lean), liver shunts (a congenital condition the breed is notably prone to, mainly seen in young dogs), and hypoglycemia (mainly in the very young/tiny). Levers you control: take dental care seriously, use a harness, keep the dog lean, and maintain routine vet care. Insurance is worth considering, insure while young.

Yorkshire Terriers are hardy little dogs that often live well into their teens, but as a toy breed they carry a few characteristic considerations. The good news is that the most important ones, dental disease and windpipe protection, are largely within your control. Here's the health picture, condition by condition.
Dental disease: the top priority
Like most toy breeds, and more than most, Yorkies are very prone to dental disease (the same number of teeth crowded into a tiny mouth, leading to tartar, gum disease, and tooth loss), and dental care is one of the most important, and most overlooked, parts of keeping a Yorkie healthy. Advanced dental disease causes pain, affects eating, and can harm overall health.
It's very much within your control: regular tooth brushing (ideally daily or several times a week, with dog-specific toothpaste, never human) is the single most effective thing, supported by dental chews and diets, plus professional cleanings under anesthesia as your vet advises (a real but worthwhile recurring cost). Get an adopted Yorkie used to brushing gently and positively. Watch for bad breath, red or bleeding gums, tartar, or difficulty eating. Because dental disease is so common and cleanings can be costly, it's both a health priority and a budget consideration.
Tracheal collapse: harness, not collar
Yorkies are prone to tracheal collapse (weakening of the windpipe's cartilage rings, causing a characteristic honking cough), which is why they should walk on a harness, not a neck collar. A collar puts pressure on the delicate windpipe (worse if the dog pulls); a harness spreads pressure across the chest, protecting the neck. This is a simple, important protective measure, do it from day one.
Signs: a goose-honk cough, coughing with excitement, exercise, or neck pressure, and in severe cases exercise intolerance or breathing difficulty. Mild cases are managed with weight control (excess weight worsens it), harness use, avoiding irritants like smoke, and sometimes cough medication; severe cases may need more. If your Yorkie develops a honking cough or breathing issues, see your vet. Walking on a harness and keeping the dog lean are among the simplest, most valuable things a Yorkie owner can do.
Kneecaps, liver shunts, and blood sugar
Luxating patellas (slipping kneecaps): common in small breeds, causing a skipping gait or intermittent lameness, mild to severe (surgery for severe). Keep the dog lean and have any skipping assessed. Liver (portosystemic) shunts: a congenital blood-vessel abnormality bypassing the liver, which the Yorkie is notably prone to, usually seen in a young dog (poor growth, being the runt, neurological signs like disorientation or seizures, especially after meals). Diagnosed by blood tests and imaging; treated with diet, medication, and often surgery. Hypoglycemia: mainly a risk in very young/tiny puppies (feed frequent meals, know the signs), much less an issue in a normal adult.
If you adopt a young Yorkie with poor growth or these neurological signs, liver shunt is worth investigating; for a healthy adult that grew normally, it's much less of a concern. For a normal-sized adult Yorkie, dental care and harness use are usually the bigger day-to-day priorities. See our grooming guide for coat care.
Lifespan and the insurance case
Yorkies are fairly long-lived, typically ~12 to 16 years. Take dental care seriously, use a harness, keep the dog lean, mind hypoglycemia in the very young/tiny, be alert to liver-shunt signs in a young dog, protect from the cold in Montreal winters, and stay on routine vet care. On insurance: worth considering, the breed's potential conditions, dental (over a long life), tracheal collapse, luxating patella surgery, and liver shunt (expensive surgery), can be costly, and the long lifespan means many years for issues to arise.
Take out insurance while the dog is young and healthy, before any condition is excluded, and check whether dental (common in small breeds) is covered. If you self-insure, keep a solid vet fund with dental in mind. For an adopted adult or senior, some conditions (especially dental) may already be present. With good preventive care, especially dental and harness use, a Yorkshire Terrier can be a healthy, delightful companion for many years. See the adoption guide for the cost picture.
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See Available Dogs →Frequently Asked Questions
What are the main health problems?
Dental disease above all (Yorkies are among the most dental-prone breeds), plus tracheal collapse (use a harness), luxating patellas, and liver shunts (which the breed is notably prone to, mainly in young dogs), with hypoglycemia mainly a risk in the very young/tiny. Generally a hardy, long-lived breed (12 to 16 years).
Why a harness instead of a collar?
Yorkies are prone to tracheal collapse (a weak windpipe, causing a honking cough). A neck collar presses on the delicate windpipe, especially if the dog pulls; a harness spreads pressure across the chest, protecting the neck. Use a harness from day one, and keep the dog lean (excess weight worsens tracheal collapse).
Are they prone to dental problems?
Yes, very, more than most toy breeds (crowded teeth in a tiny mouth). Dental care is one of the most important and overlooked parts of Yorkie health. Brush regularly (dog toothpaste), use dental chews, and get professional cleanings as your vet advises. Watch for bad breath, red gums, or difficulty eating. It's a real budget consideration too.
What are luxating patellas, liver shunts, and hypoglycemia?
Luxating patellas are slipping kneecaps (keep the dog lean). Liver shunts are a congenital condition the Yorkie is notably prone to, usually seen in young dogs with poor growth or neurological signs (diagnosed by tests, often needing surgery). Hypoglycemia (low blood sugar) is mainly a risk in very young/tiny puppies, much less an issue in a normal adult.
How long do they live, and is insurance worth it?
Fairly long-lived, typically 12 to 16 years. Insurance is worth considering, dental, tracheal collapse, luxating patella surgery, and liver shunt surgery can be costly, and the long life means many years for issues to arise. Insure while young, check whether dental is covered, or keep a solid vet fund.
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