After cats develop hemolysis, they usually show pale or yellowish stains on the mucous membranes and gums. Long-term hemolysis will cause anemia, lethargy, weakness, loss of appetite, etc. In severe cases, the heart rate will increase and the heart rate will increase and breathing difficulty will occur. Hemolytic disease in cats can easily be life-threatening. It should be taken to the hospital for diagnosis and treatment in time. The cause should be diagnosed as early as possible and treated symptomatically.