Nature is an endless source of wonder! Did you know, for example, that certain dog breeds naturally have a blue or spotted tongue? This amazing coloring is a simple genetic trait, harmless to their health. But be careful: if your faithful companion's tongue is usually pink and suddenly turns blue, purple or very pale, this may indicate cyanosis, i.e. a lack of oxygen in the blood. A rapid veterinary consultation is then essential. We'll explain it to you.
A surprising but natural trait in certain breeds
In some dogs, a blue, black or spotted tongue is a surprising but perfectly natural phenomenon. This coloring is due to melanin, the pigment responsible for the color of the skin, hair, eyes and sometimes also mucous membranes such as the tongue. In breeds like the Chow ChowTHE Shar Pei or even theEurasierhyperproduction of melanin leads to darker pigmentation of the tongue and sometimes the gums. We also find this phenomenon in certain crossbred dogs or in breeds such as the Australian ShepherdTHE Siberian HuskyTHE Mastiff or theAkita Inu.
This is an astonishing genetic peculiarity which sometimes reveals itself over time: some puppies are in fact born with a tongue that is still partially pink, which gradually becomes colored over the weeks. Depending on the distribution of pigments inherited from their parents, their tongue can then become uniformly blue-black or simply have a few dark spots.
When should you worry?
While some breeds naturally have a dark tongue, a sudden change in color in a dog with a usually pink tongue should alert you. A tongue that turns blue, purple or very pale can in fact be a sign of cyanosis, that is to say a lack of oxygen in the blood, often linked to a heart or respiratory problem or an obstruction of the airways. This can, for example, happen after the ingestion of a foreign body, a collar that is too tight, poisoning or even allergic shock (especially after contact with processionary caterpillars).
Other signs to worry about include difficulty or rapid breathing, pale gums, sudden weakness, excessive salivation, vomiting, tremors, or loss of balance. A white tongue can indicate poor blood circulation or severe anemia.
Either way, this is a veterinary emergency. You must then contact a clinic as quickly as possible and limit the stress and efforts of your dog during transport as much as possible. On site, the veterinarian will be able to check his oxygenation, monitor his vital signs and carry out additional examinations in order to identify the origin of the problem and implement appropriate treatment.