This article helps you recognise dog fever and treat it. Dogs are very similar to human beings and they get sick too. Dogs often get fever. However, dogs are not able to talk like we do and they cannot express the state of health they are in. Therefore, as caretakers and owners we need to be able to tell when our dog is sick and needs medical attention. Trying to tell if a dog is sick is similar to trying to guess if an infant is sick. Both cannot sick and are completely dependent on you to give them medical attention.