You don't have to be a veterinarian to write about health topics! Instead, draw on your own concerns or experiences as a pet owner, to generate articles ranging from preventive care to ways of handling specific illnesses or injuries. For example, did your veterinarian recommend that you learn how to brush your cat's teeth? Write an article about it! Consider a life-stage approach to health topics, from the needs of the newborn to the aging pet. Try a seasonal focus, such as protecting your pet from the hazards of hot or cold weather.