Types of Kidney Stones. Occasionally, high levels of chemicals in the urine form into crystals. Eventually these crystals become large enough to form stones in the kidney, a condition called nephrolithiasis. Stones (calculi) may also form in the ureter or the bladder.
Ear infections usually begin with inflammation of the outer ear canal, caused by bacteria or yeast. But, ear infections in dogs can be caused by food allergies, parasites, foreign bodies, trauma, excess moisture in the ear or hereditary conditions. If you think your dog has an ear infection, take him to the vet for treatment. Then learn how to prevent ear infections and properly clean your dog's ears.
Certain breeds, such as Labradors and others with long, hanging ears, are more at risk of getting ear infections. Other dogs, like poodles, have a lot of hair in their ear canals that puts them at risk for infections when wax and dirt become trapped within the hair. Any breed of dog that has a type of allergic skin disease can suffer with chronic ear infections as well.