A red nose may indicate the presence of rosacea, carcinoid syndrome, meningitis or sepsis, states Healthgrades. Systemic lupus erythematosus, sarcoidosis, encephalitis, appendicitis, pyelonephritis, cholecystitis and pneumonia are other causes of a red nose. Red noses o...
Ears turning red sporadically can be caused by a rare condition known as red ear syndrome, according to a 2013 article in The Journal of Headache and Pain. The condition can also occur naturally depending on a variety of factors.
A dog's nose can turn brown because of a condition called snow nose, which makes the pigment in a dog's nose change as the seasons change, according to WebMD. Snow nose can cause a black nose to become brown in winter and go back to black in spring and summer.
Several factors can cause a dog's nose to turn pink, including temperature changes or nasal depigmentation, also known as "Dudley nose." Certain breeds are more affected by temperature or more prone to depigmentation than others.
Runny noses in dogs can be caused by dental problems, bacterial or fungal infections, foreign objects, and pneumonia, according to PetMD. In many cases, sneezing and nasal secretions are considered normal in dogs; however, consult a veterinarian if the symptoms are seve...
Dogs sometimes encounter nose color changes due to conditions, such as nasal depigmentation or plastic dish nasal dermatitis. Nose color changes can also indicate that the dog is suffering from a nutritional deficiency, is infected with parasites or is undergoing hormon...
Red skin on the face may be a condition called Rosacea, explains WebMD. Between the ages of 30 and 50, fair-skinned people may develop this condition first as easy blushing. Then small blood vessels and pimples may occur. Rosacea causes redness and swelling of the cheek...