This situation is generally caused by dogs eating too much oily food. Long-term intake of high-calorie substances leads to endocrine disorders in dogs, causing redness and swelling of hair follicles, accompanied by dark brown knots. Scab is also commonly known as black chin. It may also be caused by atopic dermatitis. You can take your dog to a pet hospital for an allergen test to confirm the diagnosis. After the diagnosis is confirmed, try to avoid contact with foods and environments that can cause allergies in your dog.

Why dogs have acne:

1. Because dogs suffer from skin diseases, such as canine pyoderma, skin eczema, and body mite infection. Table nodules etc.

2. It may be caused by some tumors, such as breast tumors, body surface sarcomas, etc., but tumors are generally more likely to occur in older dogs.

3. Skin pimples may be caused by allergies. Papules may be caused by inflamed and clogged pores caused by strong secretion of sebaceous glands. Papules may be caused by exposure to a humid environment or hot weather.