15 Deadly Kidney Signs You Must Catch Early

8. Leg or Foot Cramps at Night

Cramps jolt your calves like electric shocks, waking you. Susan, 49, blamed exercise until kidney tests showed electrolyte imbalances, common in 50% of CKD cases. Gentle stretches eased it, but it’s a clue. Legs twitching? This one’s a taste changer.

 

7. Metallic Taste or Bad Breath

A metallic tang in your mouth, like sucking pennies, lingered for David, 54. Toxin buildup alters taste in 1 in 3 CKD patients, studies say. Brushing didn’t help; kidney care did. Taste off? The next sign’s a breathing hint.