If one of your dog’s nails turns black, you should first carefully check whether the dog’s nail is on the hand and whether there is redness, swelling, ulceration, congestion, etc. If your dog’s nails turn black due to trauma, sterilization and anti-inflammation will be necessary. If there is no trauma, it is normal for your dog’s nails to turn black. Generally, dogs' nails are mostly quilt-colored or pink when they are young, and they may turn black when they grow up.

Dog nail care:

1. You can often take your dog out for a walk, preferably on the cement floor, while the dog is walking and running. Nails will wear out naturally, which is the healthiest way to care for them.

2. If the dog often goes out for walks, the owner can regularly use a nail grinder or nail file to help the dog's sharp nails be polished and rounded.

3. If the dog does not have the habit of going out for walks frequently, the owner needs to trim the dog’s nails every week or so and polish them roundly.