White Spots and Warts on a Dog's Back and Neck

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Canine skin conditions can be caused by viruses, bacteria or parasites. It is best to see a vet if you notice abnormalities on your dog's skin. Although usually harmless and treatable, skin abnormalities can itch and be very uncomfortable. In rare cases, a dermal anomaly may indicate a serious problem.

White spots and wart-like bumps across a dog's neck and back could be the result of several different disorders.


Canine acne manifests itself as pimples, pustules and red cysts. If an infection sets in, these may start to become irritated and itchy. Although it usually occurs on the faces of young dogs, it can appear on any part of the body and at any age.


Canine warts are caused by the papilloma virus and look like small bumps on the skin. If one wart appears, it is frequently followed by more as the virus spreads across the skin. Dog warts are generally benign, but should still be closely monitored. Take your dog to the vet as soon as possible if the warts become red, ulcerated or start to grow.


Seborrhoea is a skin condition in which the skin flakes off, catching in the fur so that it looks like dander. Caused by overactive sebum production, seborrhoea is often accompanied by canine acne. It can also cause the fur to become ingrown, a condition known as folliculitis. As the hair grows into the skin, it becomes infected, causing a red, raised bump to appear. Seborrhoea causes the skin to itch and become very irritated. Take your dog to the vet as soon as possible if you suspect that they have seborrhoea.

Ticks and Lice

If your dog is outside frequently, you should be aware of the possibility that they have ticks or lice. Lice look like small white or black dots on the fur and skin. Ticks appear as raised bumps and can easily be mistaken for warts. Both cause skin irritation and can lead to serious health problems if left untreated. Your vet can provide treatment as well as preventive care for ticks and lice.