Swelling around the face and eyes may occur due to edema, especially noticeable in the morning upon waking.
Kidney dysfunction may lead to fluid accumulation in the abdomen, causing abdominal swelling or an increase in abdominal girth.
Back pain may be caused by kidney disease, particularly in cases of kidney infection or kidney stones.
Urine may appear an abnormal color, such as dark brown, pink, or foamy, which may indicate blood or protein leakage into the urine.
Kidney dysfunction may lead to mineral metabolism disorders, causing bone pain or fractures.
Since the kidneys are responsible for producing erythropoietin, kidney dysfunction may lead to anemia, manifesting as fatigue, dizziness, and pale complexion.