Skin itching in cats and dogs is not only caused by external parasites, such as ticks, fleas, or mites, but also by bacteria, yeast or fungi. Ringworm is a common skin problem affecting many cats and dogs. It is caused by fungi and is highly infectious. In fact, it is considered a zoonotic disease, meaning it can be transmitted to humans.

Chronic infections of the outer ear are often caused by yeast. Moist conditions in the ear provide an ideal environment for the growth and multiplication of yeast. These organisms are also common contaminants of skin surfaces that are already inflamed or infected.

The skin can harbor a lot of bacteria all the time without causing any infection. However, when the immune system is compromised, the bacteria can easily multiply and create infection. Any skin problem or irritation should be brought to the attention of your Lansing, MI vet. Learn more here.