18. Sudden Weight Loss
Kidney disease can cause nausea, vomiting, and appetite loss, which may lead to unexplained weight loss. This should always be taken seriously and discussed with a healthcare professional.
19. Nausea and Vomiting
High toxin levels irritate the stomach and digestive system, often leading to nausea and vomiting. If these symptoms persist without another clear cause, kidney problems may be involved.
20. Bad Breath
Bad breath, often described as “ammonia-like,” can result from uremia — the buildup of waste products in the bloodstream. This is one of the more noticeable warning signs of declining kidney function.
21. Reduced Urine Output
Producing less urine than normal may signal that your kidneys are failing to do their job. Any sudden change in urine frequency or volume should be checked.
22. Dark or Bloody Urine
Blood in the urine (hematuria) or urine that appears tea-colored can be caused by infection, stones, or more serious kidney conditions. This symptom always requires medical evaluation.
