 If this illness is not diagnosed and treated, then the cat's life may be at risk from urethral obstruction with mineral crystals or protein plugs and inability to urinate.Feline cystitis appears to be associated with complex interactions among the nervous system, adrenal glands, and urinary bladder.Environment also appears to play a role in the pathophysiology and, in some cases, is associated with clinical signs related to the gastrointestinal, cardiovascular, respiratory, nervous, integumentary, and immune systems.