Sensitivity to anaesthesia appears on the Belgian Malinois's condition list and it is worth raising with a vet before any procedure — a lean, low-body-fat breed can respond differently to standard protocols, and it is the kind of thing better discussed in advance than discovered.
Degenerative myelopathy is the other item to name. It is a progressive spinal cord disease appearing in middle age, beginning with a subtly dragging hind foot and scuffed nails and progressing to hind limb weakness. It is painless, which makes it easy to dismiss early, and there is a DNA test.
Hip and elbow dysplasia, progressive retinal atrophy, thyroid disease, epilepsy, ear infections, allergies and bloat complete the list.
The Malamute's list runs to hip and elbow dysplasia, hypothyroidism, hereditary cataracts, progressive retinal atrophy, epilepsy, heart disease, bloat, inherited polyneuropathy and zinc-responsive skin disease.
On money the Malinois is cheaper — $120–$250 a month against $150–$300, and $1,800–$3,500 against $2,000–$4,000 — with grooming at 2/5 against 4/5 and shedding at 3/5 against 5/5. It also lives a year longer.
Both carry a real bloat risk and both households should know the signs.