Possible Causes:
* Ringworm: A fungal infection that causes circular, bald patches on the skin. It's highly contagious to other animals and humans.
* Allergic Dermatitis: An allergic reaction to something like food, pollen, or fleas, resulting in itchy, red patches that can lead to hair loss.
* Mange: A parasitic skin condition caused by mites. There are two types: Demodectic mange (caused by mites that live in hair follicles) and Sarcoptic mange (caused by mites that burrow into the skin).
* Fleas: While fleas can cause generalized itching, they are unlikely to be the primary cause of small, bald circles.
* Bacterial Skin Infections: These can cause various symptoms, including hair loss.
* Hormonal Imbalances: Can sometimes lead to skin changes.
* Underlying Medical Conditions: Conditions like hypothyroidism or Cushing's disease can affect skin health.
What to Do:
1. See a Veterinarian: A veterinarian is the best source for a proper diagnosis and treatment plan. They can examine your dog, perform tests (such as skin scrapings, fungal cultures, and blood tests), and recommend the best course of action.
2. Provide Medical History: Be prepared to tell the vet about your dog's overall health, any medications they're taking, and if they have any known allergies.
3. Describe the Symptoms: Be specific about the size, shape, and location of the bald circles. Mention any other symptoms like itching, redness, or scabbing.
Important Notes:
* Don't Self-Diagnose: While it's good to be informed, don't try to diagnose your dog's condition yourself.
* Don't Delay Treatment: Prompt treatment can help prevent further complications and ensure your dog's comfort.
Remember, only a veterinarian can determine the cause of your dog's bald circles and provide the appropriate treatment.