Vitiligo is a rare skin condition that some humans may develop, but so can cats and dogs. A human or animal with this condition experiences depigmentation, which occurs when the skin loses its natural pigments. The skin will turn white (or light pink) in patches and hair in those spots can also turn white.
These can be caused by a bacteria infection of the hair follicles (bacterial folliculitis), autoimmune diseases, a bacterial skin infection (pyoderma), a fungal skin infection among others. I would recommend taking Sadie to the vet to determine the cause of the pustules, and to prescribe the proper treatment.
They are most commonly found on a dog's head, hips, or chest, and often feel hot to the touch. Hot spots can result from a wide range of conditions, including infections, allergies, insect bites, or excessive licking and chewing.
The white spotting genes stop certain areas from producing any pigment. Very small amounts of white on the chest, toes, or tail of a dog is known as residual white. It's likely that this is the type of white marking your black Lab will have. It's also possible that residual white coloring is hereditary.
A small "breathing" hole is often visible in the skin over the warble. The hole enlarges when the warble has fully matured and is about to leave the host. Sometimes, nothing abnormal is noticed until after the larva has left the host and the empty cyst becomes infected or develops into an abscess in the dog's skin.
White patches, also medically termed as vitiligo cannot be cured but it can be treated and stopped from spreading. This skin condition is a lifelong condition that can affect an individual's way of thinking in society.
In many cases, these spots are very natural and may be present from birth. Some dogs develop brown spots on the skin when they get older. They are not itchy or scaly, the skin is not thick and does not cause any harm to the dog at all. There is no need to worry about this.
If your dog has dark spots on their belly that have been increasing in size, or are bothersome to your dog, it is best to have them examined by a vet. These spots can be caused by a wide range of things including allergies, yeast infections, or even small cysts, scabs or tumors.
Ear mites are a very common problem in dogs, particularly in puppies. If your dog's ears appear red, inflamed or irritated, or you see waxy debris inside their ears, consult with your veterinarian for a definitive diagnosis and treatment options.
Fleas, mites, and ticks can cause irritation, exposing your dog to bacteria, yeast, and fungal infections. Demodex mites, walking dandruff, flea allergy dermatitis, and sarcoptic mange (caused by the Sarcoptes scabiei mite) can all cause rashes on your dog's skin, including her belly and groin area.
What is this? As dogs have difficulty grooming their nipples (due to the fur that usually hides them), the pores around them are more prone to becoming dirty and develop blackheads as a result. In lactating female dogs, black spots can develop due to dried up and clogged milk pores.
A dark spot could be a hyper pigmentation, which is common in older dogs. These spots of hyper pigmentation are usually harmless. There can also be more serious causes of dark sport, such as skin cancer. I would recommend taking Rue into your vet to have the spot examined.
Exposure to the sun is the most common cause of black spots in dogs skin and fur. Ageing is also known to cause dark spots in canines (age spots). Friction can also cause dark patches in areas such as armpits and under the legs.