Two Week Old Puppy XRay
Look at how far the bones have to grow before they become a proper boney joint! This is why you should never let puppies jump (off of a couch), walk up/down stairs, over exercise, or over train. Doing too much impact activity at a young age will cause serious issues later on in life, or even at a young age, as hip dysplasia and other orthopeadic conditions are rising in puppies!
Remember the puppy rule: For every month increase activity by 5 minutes! For example an 8 week old puppy only needs 10 minutes a day of physical activity!!
*physical activity includes: going for a walk, training, playing fetch, running, playing with other dogs, etc.