Frequent inappropriate urination in male cats can stem from several causes, including being in heat, disliking their litter box, or experiencing stress from unfamiliar environments. To eliminate the lingering urine odor, consider using an enzymatic pet shampoo, regularly cleaning the litter box, and addressing the underlying behavioral triggers.

Understanding Why Male Cats Urinate Outside the Litter Box
Firstly, male cats in heat often spray urine to mark their territory. Unneutered male cats can go into heat repeatedly, typically about once a week, with each cycle lasting 7 to 10 days. During this period, they might roll around, writhe, and vocalize with low howls. Spraying urine around the house is a common way for them to attract female cats. When spraying, they usually lift their tails high and then rapidly vibrate them. The most effective way to solve this issue is to have your male cat neutered. Secondly, if the litter box or the litter itself is not to their liking, this can also cause inappropriate urination. It's helpful to increase the number of litter boxes and switch to a litter type your cat prefers. Lastly, if a cat is introduced to a new environment, experiences visitors, or encounters unfamiliar animals, this can lead to anxiety and cause them to urinate outside the litter box.
Effective Ways to Eliminate Male Cat Urine Odor
To combat the smell effectively, it’s recommended to use an antibacterial and deodorizing pet shampoo. You should also increase the frequency of baths to about every 15 days, making sure to dry their fur thoroughly afterwards to prevent skin issues. It's also beneficial to use antibacterial and deodorizing cat litter to reduce the chance of urine odor clinging to their fur. Furthermore, ensure the litter box is cleaned regularly and the litter is changed frequently to minimize odor build-up.