### Why Do Dogs Develop Bald Spots? It's normal for dogs to shed hair, but noticeable bald spots can be a sign of an underlying issue. Here are some common reasons why dogs might lose hair and what you can do about it: #### 1. **Allergies** Dogs can be allergic to foods, environmental factors like pollen, or parasites such as fleas. Flea bites are a common cause of allergies, leading to itching, redness, and hair loss. Treatment may include medications, allergy shots, dietary changes, and avoiding allergens. #### 2. **Cushing's Disease** This condition is caused by the overproduction of cortisol. It's more common in dogs older than six years. Symptoms include increased eating, drinking, urinating, panting, and a pot-bellied appearance. Treatment options include medication and sometimes surgery. #### 3. **Genetics** Some breeds are more prone to baldness, such as greyhounds, whippets, and Chihuahuas. These bald spots usually appear after the first year and are often considered normal for these breeds. #### 4. **Infections or Infestations** Ringworm, mites, and bacteria can cause infections leading to hair loss. Symptoms include oily or thickened skin, itching, and inflammation. Treatments include topical or oral medications and antibiotics for secondary infections. #### 5. **Pressure Sores** Older or heavier dogs can develop pressure sores on bony parts of their bodies. These sores can thicken the skin and cause hair loss. Treatment includes moisturizers, antibiotics, and cushioned bedding to prevent sores. #### 6. **Rashes/Hives** Insect bites, medications, plants, and chemicals can cause rashes or hives, leading to bald spots. Symptoms can appear within minutes to hours and may include fever, lack of appetite, and vomiting. Immediate veterinary care may be needed. If you're unsure about the cause of your dog's bald spots, consult your vet for a proper diagnosis and treatment plan.