How come my dog's belly is purple?

There are mainly three reasons for a dog's belly to be purple: first, it could be due to local bruising caused by external force impact or falling from a high place. Second, it could be because of the cold weather, which makes the skin look purple. Third, it might be related to cardiovascular problems, anemia, or chronic bleeding in the dog. If the purple belly is caused by simple bruising or cold weather, it's generally not a big deal. You can apply heat to promote the absorption of bruises and pay attention to keeping the dog warm. However, if the purple belly is caused by a disease, it's necessary to seek medical attention promptly.

Local bruising

If a dog's belly is hit by external force, such as jumping or fighting, or falls from a high place, it can easily cause the dog's capillaries to rupture, leading to local bruising and a purple appearance. If the dog is only suffering from simple bruising, and the dog is in good spirits and has no abnormalities in walking, it usually can recover on its own. Owners can assist with applying heat to promote the absorption of bruises. If there are other injuries, however, medical treatment or surgery may be necessary based on the symptoms.

Cold weather

Dog's abdominal skin is thin, so when the weather is cold, it can make the skin look purple. In this case, it's essential to provide proper warmth for the dog or even dress them up to avoid catching a cold.

Disease causes

If the entire abdominal wall of the dog is purple, and the gums, conjunctiva, etc., are also purple, it could be related to cardiovascular problems, anemia, or chronic bleeding. In this case, it's necessary to take the dog to the veterinarian promptly to check for the specific cause and then adopt targeted treatment measures.