Can Cat Urine Smell Cause Illness. Cats are great pets but they need attention, care, and a clean home. How to permanently neutralize cat urine odor.
Cat urine that has sat for awhile often smells strongly of ammonia which can be harmful to humans. Mental illnesses tend to cause (or be caused by) hormonal imbalances. Cleaning up cat urine and feces is not the most appealing job but it must be done, and carefully.