How Long Are Cats In Heat?

How long does each heat cycle last?

The active estrus (fertile) phase typically lasts 7 to 10 days, though it can be as short as 1 day or as long as 21 days depending on the individual cat. During this time, the cat is actively receptive to mating and shows the characteristic behavioral signs: excessive vocalization (loud, persistent yowling), increased affection and restlessness, rolling on the floor, elevating the hindquarters (lordosis posture), and attempting to escape outdoors. If she mates, the heat signs typically stop within 1 to 2 days. If she doesn't mate, the cycle ends and then restarts.

How often do cats go into heat?

Cats are seasonally polyestrous, meaning they cycle repeatedly during breeding season. In the Northern Hemisphere, breeding season typically runs from early spring through late fall, driven by increasing daylight hours. During this time, an unmated cat will cycle every 2 to 3 weeks. Indoor cats exposed to consistent artificial lighting may cycle year-round because their bodies don't detect the seasonal light changes that would normally suppress cycling during winter. According to the Merck Veterinary Manual, cats are considered "induced ovulators," meaning they typically only release eggs in response to mating, not spontaneously.

When do cats first go into heat?

Most cats have their first heat between 5 and 9 months of age, though some breeds (Siamese and other Oriental breeds) may start as early as 4 months. Long-haired breeds may not start until closer to 10 to 12 months. There's no equivalent of menopause in cats; unspayed cats can continue cycling throughout their lives, though frequency may decrease in old age.

How do I manage a cat in heat?

Keep her indoors and secure all windows and doors; cats in heat are extremely motivated to escape and find a mate. Provide extra attention and play to help manage her restlessness. Some owners report that a warm pad or heated blanket helps calm a cat in heat. Spaying is the permanent solution and also eliminates the risk of pyometra and significantly reduces mammary cancer risk. Talk to your vet about timing; most cats can be spayed during or between heat cycles.