* Caused by a type of fungus called a dermatophyte
* Highly contagious to both animals and humans
* Spreads through direct contact with an infected animal or object, or through contact with contaminated soil or surfaces
* Can be more common in the ear area if your dog or cat is scratching or rubbing excessively
Otodectes cynotis (ear mites):
* Microscopic mites that live on the skin of the ear canal
* Cause intense itching and irritation
* Can lead to secondary bacterial infections and hair loss
Demodex:
* A type of microscopic mite commonly found on dogs and cats' skin
* Some animals have higher numbers without any symptoms, though they may be more susceptible to other skin infections
* Certain factors like a compromised immune system or certain medications can cause demodex mites to overpopulate, causing hair loss
Bacterial and Fungal Infections:
* Various types of bacteria and fungi can cause skin infections in dogs and cats leading to hair loss around ears and face.
Food and Environmental Allergies:
* Allergies can cause intense itching, biting and scratching which may lead to hair loss.
Cushing's Disease:
* Common in dogs and rare in cats, Cushing's disease leads to excessive production of the hormone cortisol which suppresses hair growth.
Alopecia Areata:
* An autoimmune disease that results in the immune system attacking hair follicles, leading to sudden bald spots.
It is important to consult a veterinarian for a proper diagnosis and appropriate treatment. The vet may recommend diagnostic tests, skin scrapings, and treatment based on the underlying cause. Self-treatment or delay in seeking veterinary care may worsen the condition.