Please could some one tell me what the signs are of a hip promblem?
I have a 7 month old lab who is very big for her age but always seems lame it is if she doe not power her leg when she runs and look as if she struggels to get up from sitting? she does not seem to be in pain but certainly favours that leg.

Hi Guest, please take her to see a vet, and at 7 months old she should NOT be running!!!  At this age she should only be having around 35mins walk per day.  Serious damage can be caused to the growth platelets and hips by not restricting excersise until around 14 months old.  It may be HD but it may not be, please have it checked out before and restrict her excersise before any more damage is done