Cats need regular veterinary examinations and lab work, according to veterinarian Lee Pickett. Pickett cites a study in which cats whose owners thought they were healthy underwent exams and lab work that identified signs of serious underlying health problems, including heart murmurs, lymph node enlargement and urine abnormalities. "One of your veterinarian's most important responsibilities is to detect disease early," writes Pickett. "... Many studies show that prompt treatment reduces cost and prolongs life." Pickett also discusses hyperkeratosis of the planum nasale in dogs.