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.
Another common cause of dog swollen ear is a hematoma. Canine ear hematoma refers to the accumulation of fluids and blood in between the skin and cartilage of the ear. Most of the time it occurs over the flap of the ear, but it may also occur in the inner cavities of the ear.