What is the reason for the darkening of the dog’s balls is generally a normal phenomenon Oh!

What Causes Darkening of Dog Balls Darkening of the dog’s testicles is normal and indicates that the dog is sexually mature and ready to start breeding. Dogs will have melanin deposits as they get older. If the dog’s testicles are black, there are also symptoms such as broken skin, scabs and loss of appetite in the dog. It is important to take the dog to the hospital for examination and treatment of the symptoms.