It is abnormal for dogs to hardly bark. However, some dogs do not bark much under special circumstances. Some newborn puppies are basically not healthy if they eat and drink enough because they sleep for a long time. How can they bark, but if an adult dog doesn't bark much when seeing a stranger, there may be something wrong, which needs parents to find out and solve.

Tip:

Almost all dogs like to bark. They will convey information and express their emotions through barking, so a dog does not bark at all. A barking dog is unhealthy.