Hey all, you've helped me in the past and I hope you can help me again. My dog is about 3 years old now, and he is a staff cross. Over the past 3 weeks his back legs have started 'clicking'. To start off with it was just when he was getting up from the sitting position but now it slowly starting to happen as he walks around. It doesn't seem to be causing him any problems or discomfort. Should I be very worried by this? Is there anything I can do about it? Does he really need to go to the vets so they can check him out? Thanks in advance.