13 warning signs your dog is in pain

If your dog is arching his back while tucking his belly up and under, he’s in pain. This behaviour often indicates gastrointestinal distress, but it can also be a sign of back pain, such as a spinal injury or pinched nerve, or anal pain caused by too-full anal sac glands. According to the dog-walking website Wag!, a semi-permanent, arched posture – as opposed to the leisurely-type stretching dogs often do – is an emergency and you should call your vet immediately.