Skin signs that stop being routine in a Westie
Skin trouble is where a West Highland White Terrier most often crosses from routine to urgent. A mild itch can wait for the next appointment; skin that is hot to the touch, weeping, crusting with yellow discharge, bleeding from scratching, or giving off a strong sour smell cannot, because infected skin in this breed deepens quickly and the dog suffers through every hour of it. Frantic chewing at the feet until they are raw, a belly rubbed bald and red overnight, or scratching that keeps the whole household awake marks a flare that needs treatment now, not a shampoo experiment first. Take a dated photo before you call — showing the vet how fast the skin changed helps them judge severity.
Allergic reactions and facial swelling
A swollen face in a West Highland White Terrier is an urgent sign on its own. Hives, puffy eyelids, a muzzle that thickens after a sting, a new food, or a walk through long grass can signal an allergic reaction, and in a small dog the margin between a swollen face and a tight airway is short. Vomiting alongside the swelling, drooling, or breathing that becomes noisy or effortful turns the call into an emergency trip. Even if swelling fades, report the episode the same day and note what the dog ate, touched, or was stung by in the hours before — that trigger list, kept accurately, is how repeat reactions get prevented rather than repeated.
Ears, head tilt, and balance changes
Ear and balance signs in a West Highland White Terrier need prompt care when they arrive with pain or disorientation. Head shaking by itself is common in the breed, but shaking paired with crying out, a head held tilted to one side, scratching that draws blood, or a dark discharge with a strong smell points to an ear problem that will not improve on its own. A Westie who walks drunkenly, circles, or whose eyes flick side to side needs urgent assessment the same day, because balance problems can come from the ear, the brain, or poisoning, and only an examination separates them. Do not put drops from an old bottle into a painful ear before the visit — the vet needs to see the canal as it is.
Gut, appetite, and energy changes in a small dog
Digestive and energy signs escalate faster in a West Highland White Terrier simply because the dog is small. Repeated vomiting, diarrhoea that contains blood, or vomiting and diarrhoea together can dehydrate a Westie within a day, so those combinations earn an urgent call rather than a bland-food trial at home. A dog who refuses food for a full day while also drinking far more than usual, straining to urinate, or retreating from family life and sleeping through normal activity has crossed the same line. Weakness, trembling, or collapse in any small dog is a same-day emergency regardless of what preceded it.
What can wait for the routine appointment
Plenty of West Highland White Terrier changes are routine material: seasonal itchiness with intact skin, mild tear staining, a small stable lump, occasional ear wax without pain or smell, or a slightly pickier appetite in a dog who is otherwise bright, drinking, and playful. Log those with dates and bring the list to the scheduled visit, where the vet can weigh trends instead of snapshots. The rule of thumb for this breed is that skin, face, breathing, balance, and hydration signs move fast — when in doubt, phone and describe; the clinic would rather triage a false alarm than meet a crisis late. Filing your Westie's flare history and visit notes in KinsLe through Pet Passport gives every vet the timeline this breed's skin story needs.