The specific symptoms of kidney failure in cats include lethargy and frequent thirst, nausea, vomiting, drooling, dehydration, bending over the water bowl, gastritis, constipation, loss of appetite, weight loss, sparse hair, etc. The increase in urination frequency also makes cats often thirsty. Most of the nutrients in the body are lost with urination, so they have no energy to rest and become sleepy. If these symptoms are not taken seriously, more serious kidney diseases will gradually develop. Therefore, if you have the above obvious symptoms, you should go to the hospital in time.