Why is my dog walking with his tail tucked?

Why is my dog walking with his tail tucked?

If your dog’s tail is carried downward and closer to its hind legs it can mean they are either depressed, not feeling well, or insecure. If the dog’s tail is tucked between his legs, it often means they are very frightened or defensive

What does it mean when a dog’s tail is tucked between their legs?

Tucking the tail between the legs signals submission and fear. A tucked tail is the canine equivalent of hiding his face because it covers the genitals, and interferes with the sniffing behavior that identifies him to other dogs.