Why is my dog so itchy?

Every dog scratches sometimes. The occasional scratch behind the ear or a quick nibble after a walk is normal. What is not normal is scratching, licking, chewing, or rubbing that happens many times a day, interrupts sleep, or leaves the skin red, thinned, smelly, or bald.

If your dog is doing damage to their own skin, or you find yourself noticing the sound of scratching from the next room, it has crossed from grooming into a problem worth sorting out.

Fleas and other parasites. Fleas are still the number one cause of itching we see, and you do not have to spot a single one for them to be the problem. One bite can set off days of scratching in a flea allergic dog. Mites, which cause mange, are another parasite that drives an intense itch.

Allergies. After parasites, allergies are the most common reason. Dogs can be allergic to fleas, to something in their food, or to things in the environment like pollen, dust mites, and grass. Environmental allergies often flare with the seasons, while food allergies tend to itch all year round. There is more on our allergy and skin care page.

Skin and ear infections. Once the skin barrier is irritated by any of the above, bacteria and yeast move in and make everything itchier. Recurring ear infections in particular are very often a sign of an underlying allergy rather than a fresh problem each time.

Dry skin from low humidity or over bathing, contact irritants like a new shampoo or lawn treatment, stress driven licking, and hormonal conditions can all cause itching too. They are less common than parasites and allergies, but a good exam checks for them rather than assuming.

Make sure your dog is on a vet recommended flea and tick preventive, every month, all year, even indoor dogs. This is the single most useful thing you can do while you work out the cause.

Do not reach for human medications without asking us first. Some are safe at specific doses and some are dangerous, and guessing can hurt. A quick call is worth it.

A cool bath with a gentle, soap free pet shampoo can calm inflamed skin for a while. Avoid home remedies like vinegar soaks, which often sting broken skin and rarely fix anything.

Stop any new food, treat, shampoo, or supplement you started recently and see whether the itch settles.

Book a visit if the itching is constant, if the skin is red, raw, smelly, or losing hair, if the ears are involved, or if it simply is not improving. The sooner we find the cause, the less your dog suffers and the less you spend chasing it.

In the exam room we work through the likely causes in order, starting with the cheap and common ones, so you are not paying for the expensive answer first. The video below walks through exactly how we pin down an allergy.

Once we know the cause, most itchy dogs do really well. That might mean year round flea control, a proper food trial, allergy specific medication, or long term immunotherapy for environmental allergies. Allergies are managed rather than cured, but a good plan gets most dogs comfortable and keeps them there. Book an allergy visit whenever you are ready.