It can take one to two weeks for the dog’s hair to grow back.

Silky Terrier Dog Breed Playing Aro... Silky Terrier Dog Breed Playing Around

The new hair is darker than the surrounding hair because it has just grown out of the pigment-containing follicles that determine your dog’s coat color. The hair shaft will become lighter over time as natural oxidization causes the pigment to break down. If you’re expecting a puppy, his new puppy fur can be any color – from light blonde to almost black – while his adult coat is developing.

The dog’s new hair will be a lighter color because it has just grown out of the pigment-containing follicles that determine your dog’s coat color. The hair shaft will be darker as natural oxidization causes the pigment to break down. If you’re expecting a puppy, his new puppy fur can be any color – from light blonde to almost black – while his adult coat is developing.

However, the time it takes for the dog hair to grow can vary depending on the breed (hairs grow faster in some breeds than in others), the size of your dog (larger dogs typically grow their hair back more quickly), and the age of your dog (it typically takes longer for older dogs to regrow their hair).

In addition, if you have a mixed breed pet, his fur may include hair from two different coat types that can make it grow back at different rates. For example, a mix of short and long hair will result in hair growing out in graduated lengths rather than all at once like with a purebred dog.

Biological factors also influence how quickly the dog’s hair grows back (or if it ever does). A number of diseases or general poor health will cause hair loss, which is permanent. If your dog’s hair loss seems to be chronic or due to underlying health problems, it’s important to take him to the vet for an examination.