If anyone has a very “delicate” cat (my Chloe, for instance) you know that it is critical to keep their immune system strong. A weakened immune system can be a contributing factor for a host of illnesses.
A main cause of kidney infections in cats is bacteria. A cat with a strong immune system will eliminate the bacteria before it has a chance to grow and potentially spread to the bladder, kidneys or urethra.
In animals that are very young, older or have weakened immunity, the bacteria can grow quite quickly and become a serious illness.
Kidney infections can be a secondary disease when a primary disease already exists.
Most common symptoms: inability to urinate, pain while urinating, loss of appetite, fatigue and blood in the urine.