The main reasons why a dog's belly turns black are as follows: First, pigmentation. Factors such as age, ultraviolet radiation, damage to skin hair follicles, etc., can all lead to melanin pigmentation. Second, skin diseases, such as bacterial and fungal infections, cause symptoms of lichenification on the skin. Third, endocrine disorders, such as hypothyroidism, hypoparathyroidism, excess estrogen, etc., lead to skin pigmentation. Fourth, dirt. If the dog rubs on the ground for a long time and is not bathed frequently, dirt will be left behind.
1. Pigmentation
Age, ultraviolet radiation, damage to skin hair follicles and other factors will cause melanin to be deposited in the skin, leading to skin pigmentation, so the dog’s belly will turn black. This is a normal physiological phenomenon, so don’t worry too much.
2. Skin diseases
Dogs’ skin diseases caused by bacterial and fungal infections can also cause symptoms of lichenification on the dog’s skin. At the same time, the dog will also be accompanied by skin diseases. Itching, redness, swelling, hair loss, etc. If you find that your dog has the above symptoms, you must go to the pet hospital for examination in time to diagnose the specific cause and then provide targeted treatment.
3. Endocrine disorders
The darkening of the dog’s belly may also be caused by endocrine disorders, such as hypothyroidism, hypoparathyroidism, excess estrogen, etc., which lead to skin pigmentation calm. At the same time, symptoms of symmetrical hair loss may also occur. You need to take your dog to a pet hospital for differential diagnosis and then targeted treatment.
4. Dirt
If the owner does not bathe the dog for a long time, the dog will rub on the ground for a long time, which will cause dirt to accumulate and look like a black patch. In this case, you only need to bathe and dry the dog regularly to keep it clean.