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These behavior changes often become annoying to owners, and sometimes owners think their cat has some unusual illness. Some female cats will urinate more frequently or may even spray urine on vertical objects (marking) when they are in heat.The urine contains both pheromones and hormones, both of which act as signals of her reproductive status to other cats. This is the reason that queens in heat attract intact male cats.hese behavior changes often become annoying to owners, and sometimes owners think their cat has some unusual illness. Some female cats will urinate more frequently or may even spray urine on vertical objects (marking) when they are in heat.
Best Answer: Female cats typically have their first heat around the age of six months, which usually lasts for 5 to 7 days. Cat's heat cycles are light dependent and they usually have heat cycles every 9 to 13 days from January through October, though some indoor cats exposed to constant light times will cycle all year. I advise unless you want kittens to keep her in at these times.