However, I can tell you that Border Terriers are known for their double coats, which means they typically shed twice a year. It is normal for Border Terrier puppies to moult as they grow, and this can sometimes be more noticeable than usual.
If you are concerned about your Border Terrier puppy's moulting, it's always best to consult with your veterinarian. They can help determine if the shedding is normal or if there is an underlying medical condition.