Myotonia congenita is the entry most owners have never encountered and it is specific enough to be worth naming.
It is an inherited disorder of muscle membranes in which muscles are slow to relax after contracting. Affected puppies are stiff, have difficulty rising, may bunny-hop with the hind legs, and often have an enlarged, overdeveloped-looking musculature and a stiff gait that eases as they move. It appears in the first months of life.
There is a DNA test, and it is the single most useful specific question to ask a Standard Schnauzer breeder. A puppy that is oddly stiff getting up should be investigated rather than watched.
Haemangiosarcoma — a cancer of blood vessel walls that is often silent until a tumour bleeds — appears on the list, so sudden collapse with pale gums in an adult is an emergency.
Hip dysplasia, progressive retinal atrophy, cataracts, hypothyroidism, pancreatitis, allergies, ear infections and seizures complete it. As with the Miniature, a low-fat diet is a sensible precaution given the pancreatitis risk.
The Akita's burden is autoimmune and endocrine, with hip dysplasia and bloat.