Symptoms that can tell us if our dog or cat is suffering from liver problems are: vomiting, diarrhoea, loss of appetite, weight loss, increased thirst, blood in stools and urine or signs of weakness such as unsteady gait or confusion. Sometimes liver disease occurs as a result of ageing, sometimes as a genetic problem, sometimes as a result of infection, disease or medication. If these behaviours occur, we should see a veterinarian as soon as possible to determine the best course of action to take to deal with the problem.