From what age do cats have periods? - briefly
Cats typically begin their reproductive cycle, including periods of estrus or "heat," between 4 to 6 months of age, depending on breed and individual development.
From what age do cats have periods? - in detail
Cats do not experience menstrual periods in the same way humans do. Instead, female cats go through a reproductive cycle known as estrus, commonly referred to as "heat." This cycle begins when a cat reaches sexual maturity, which typically occurs between 4 and 10 months of age, depending on factors such as breed, environment, and individual development. Smaller breeds, like Siamese cats, often mature earlier, while larger breeds, such as Maine Coons, may take longer. During estrus, a female cat becomes receptive to mating and exhibits behaviors such as increased vocalization, restlessness, and affectionate behavior toward humans or objects. If the cat does not mate, the estrus cycle will repeat every 2 to 3 weeks until she becomes pregnant or is spayed. Unlike humans, cats do not shed the lining of their uterus during this process, so there is no menstrual bleeding. Spaying a cat before she reaches sexual maturity is the most effective way to prevent estrus cycles and associated behaviors, as well as reduce the risk of certain health issues later in life.