Excessive tail chasing could be a problem

While it may be funny when your dog chases its tail, if this is a common occurrence, it could be a problem. If the habit is excessive, it could be a sign of a medical problem, according to the Canadian Veterinary Medical Association. This seemingly natural thing could be linked to conditions such as epilepsy or even obsessive-compulsive disorder (OCD) in dogs. Speak to your vet if you notice this sign.