I don't think there's a huge cause for concern but I would consider mentioning it to your vet. I say that because if there is something going on, catching it early gives you many more options. If there is hip dysplasia, I would say it's mild. Our Truman had severe hip dyplasia and his hip popped in and out of socket regularly at 9 weeks. He had surgery at 12 weeks. Now he's 5 and gets around like nothing ever happened!
