What are the main signs of hip dysplasia? Or signs the other way such as if a baby is weight baring on their legs is that a good sign that their hips are okay?

I have heard the eveness of leg rolls is important?

DD2 had an ultrasound a week after we left hospital and they said they were a little shallow but should be fine as she grows? DD1's hips were fine but I was in a brace as a baby. I'm starting to worry! They said to have a review in a few months so I'm freaking out a little... bit nervous coming up to that time and trying to find some reassurance that it will be okay.

DD2 has even leg rolls and is very strong, she has rolled...

What had you concerned if it was something diagnosed later?