Shihpoo

The single most useful thing on this page. Brachycephalic obstructive airway syndrome comes from the Shih Tzu side: narrow nostrils, an over-long soft palate and a crowded throat restrict airflow, which shows as snoring, snorting, poor exercise tolerance and, in bad cases, collapse. The same airway cannot shed heat, so heatstroke comes on fast. Crossing to a long-muzzled Poodle genuinely can moderate this, and it is one of the few places where outcrossing has a clear mechanical benefit rather than a hand-wavy one - but it is decided per puppy, not per cross. A Shihpoo with an open nose and a real muzzle largely escapes it; a Shihpoo with a face as flat as the Shih Tzu parent's does not escape it at all. Watch the puppy breathe at rest before anything else, and remember that anesthesia carries more risk in the flat-faced ones.

This follows directly from the face. Shallow sockets and prominent eyes mean a knock, a bite or hard pressure on the neck can push an eye out of the socket, which is an emergency where minutes matter. Corneal ulcers are common and deepen quickly, hair from a nose fold rubs the surface, and dry eye is managed with drops for life. The long-muzzled puppies have deeper sockets and much less of this risk; the flat-faced ones carry the Shih Tzu's odds more or less unchanged. Progressive retinal atrophy also runs in the Shih Tzu, with no reliable breed DNA test, so an annual ophthalmologist exam on the Shih Tzu parent is the only real check there.

Full-size teeth in a small jaw crowd, trap food and build tartar early, and the shorter the jaw the worse the crowding gets - so a flat-faced Shihpoo has the harder mouth, though no Shihpoo escapes this entirely. Retained baby teeth are common. The realistic plan is a toothbrush every night plus professional cleanings under anesthesia, with extractions as a recurring cost rather than a one-off. Dry food helps very little; the toothbrush is what works.

The kneecap slips out of its groove in the first, giving a skipping step, and both parent breeds carry it - ask whether both have had their knees examined and graded. Legg-Calve-Perthes comes mostly from the small Poodle side: the head of the femur loses its blood supply and collapses, usually before a year old, showing as a limp. Both are surgical when severe, and knee surgery runs $1,500-$4,000 per side.

The Shih Tzu is chondrodystrophic, so discs harden early and can rupture, causing pain, a hunched back or sudden hind-leg weakness that sometimes needs spinal surgery. A CDDY DNA test exists, though the variant is common in the Shih Tzu, and a Poodle parent does not reliably cancel it. Keeping the dog lean, using a harness rather than a collar and discouraging jumps off furniture matter as much as any test result.

An inherited kidney disease where the kidneys never develop properly, showing as heavy thirst and urination, poor growth or weight loss in a young dog. A DNA test was once marketed for the Shih Tzu but was never shown to predict the disease reliably, so treat anyone offering one as clear evidence of nothing. Ask about kidney problems in the Shih Tzu parent's line, and let early blood and urine work do the catching.

Progressive retinal atrophy slowly destroys the retina, taking night vision first and usually ending in blindness. There is no treatment, but the loss is painless and gradual and most dogs cope well in a home they already know. The PRA-prcd DNA test is cheap and real, and the Poodle parent should have one - two carriers are what produce an affected puppy. Epilepsy also runs in Poodle lines, typically first appearing between one and five years old, and is managed with lifelong daily medication rather than cured.