Why does my dog have 1 black toenail?

Why does my dog have 1 black toenail?

Although it’s usually a symptom of one of the more common, less harmful concerns, discoloration of a dog’s nail can also be a sign of a growth or tumor. Growths near the nail bed can cause inflammation or infection of the nail, causing it to appear black or discolored.

What does it mean when a dog has a black nail?

One of them is an infection caused by bacteria or a fungus. If this is the case, topical medications can be used for treatment. If the infection is more severe, the dog may require a course of oral antibiotics or other medication. Another reason for black-colored nails can just be hyperpigmentation and genetics.