 I am Dr. Vishwanath, consultant nephrologist and HOD nephrology, I am working at Manipal Hospital, Bangalore. Unfortunately, kidney disease most often doesn't have any symptoms unless there is a significant decline in kidney function. Initially there may be some vague symptoms like unexplained anemia, feeling weak, tiredness, which is often attributed to anemia. Many a times, any time you find unexplained anemia, you have to go to the bottom and see if kidney is contributing or not. You have to make sure that kidney functions are okay, then only you will know whether kidney is contributing or not. Apart from these, when the kidney functions decline beyond 90% kidney is damaged, then only you will develop symptoms like swelling of the feet, swelling of the face, recurrent vomiting, nausea. Sometimes you can have unexplained weight loss because you don't feel like eating, you don't feel all that good, you always feel like resting, sleeping. So these are all vague symptoms. There is no specific symptom to tell, this can come with kidney unlike heart where you have some chest pain, you go to your doctor, see and get evaluated. Most often by the time you develop symptoms and go to your doctor, there may be a significant kidney damage. That's the reason, don't wait for the symptoms to come in to check for kidney, you need to check for the kidney even before the symptoms arrive. Because by the time symptoms set in and you start detecting kidney problem, it may be a very late stage.