We apologize for the very average translation  ...
As in any race, disease or genetic defects exist ...
Some may be visible at birth or through early detection, of others later. There are different modes of transmission for these diseases. Some are very complex or even unknown, other straightforward.
That why we pay great attention to make the necessary order to provide maximum security on the health of your future companion.
We test our breeding for kidney disease (PKD), do the following at the UPC, have been screening patella and heart.
For minis, and more, eye defects (PPM by eye control, PLL by DNA test).

Here are the main problems in the 2 races:
deafness.
Skin problems (eg pyoderma, demodicosis, etc..).
Heart problems:
     * Breath inside
     * The sub aortic stenosis
     * Dysplasia of the mitral valve
paralysis of the larynx.
eye diseases: PPM,  progressive atrophy of the retina, PLL (lPrimary Lens Luxation).
Kidney problems:
     * Nephropathy family
     * Polycystic kidney disease (PKD)
     * Chronic renal insufficiency
joint problems:
* Dysplasia of the hip
* Patella
* Aseptic necrosis of the femoral head (Legg-CalvePerthes)
spinning (or turn) and tocs.