Most people in the early stage (CKD 1, 2, and 3a) hardly have any symptoms or only very unspecific ones, which makes CKD hard to detect.
However proper treatment during these early stages of CKD can prevent or at least slow down progression of the disease. And this is why it is so important to know your stage, the corresponding symptoms and what you can do.
Stage 1 CKD
At stage 1 CKD, the glomerular filtration rate (GFR) is at a normal or increased level of 90 ml/min and above. Stage 1 is the mildest form of CKD and may pass by undetected because those affected do not experience any signs or symptoms.
Stage 2 CKD
A person with stage 2 CKD has kidney damage that causes a mild decrease in their glomerular filtration rate (GFR) to a level of 60-89 ml/min. Even at this stage, there are usually no symptoms to indicate that the kidneys are damaged.
Stage 3a CKD
A person with stage 3 CKD has moderate kidney damage. Stage 3 CKD is divided into stage 3a and stage 3b. In stage 3a, the glomerular filtration rate (GFR) is decreased to a level of 45-59 ml/min. Even at this stage, the patient often does not experience any symptoms that indicate that the kidneys are damaged.

