Some types of lilies, including Easter lilies, tiger lilies, stargazer lilies, and certain day lilies, are extremely dangerous to cats that eat them. All parts of the plants are toxic, and ingesting only a small amount of leaf, stem, flower, or even pollen is enough to cause potentially fatal kidney damage. Dogs are not susceptible to lily poisoning.
Typical symptoms of lily poisoning include vomiting, loss of appetite, and lethargy. Early in the course of the disease, cats produce more urine than normal, but as their kidney’s shut down, they stop urinating at all.
If you suspect that your cat may have eaten a piece of a lily plant, take him to a veterinarian immediately. If the poisoning occurred within the last few hours, the doctor can induce vomiting and administer medications to help prevent the toxic substances from being absorbed into the body. Affected cats need to be hospitalized for fluid therapy, close monitoring, and sometimes even dialysis to give their kidneys a chance to recover.