Veterinarian Explains: Cat Heat Cycle Symptoms and Proper Management

In contrast to the extreme heat of 2024, news of heavy snow has been pouring in. While it is winter climate-wise, in the feline world, the mating season is just around the corner. In this article, we will explain in detail the estrus period in cats.

What is the estrus period in cats? Basic mechanisms and timing

Age of onset and seasonal timing

Cats begin to enter estrus around six months of age. However, there are individual differences; some cats may enter their first heat as early as four months old, while slower-maturing breeds (such as Norwegian Forest Cats and Maine Coons) tend to be a bit later.

Cats have two mating seasons per year, typically occurring in the spring (February to April) and from summer to autumn (June to August). Cats are "long-day breeders," meaning they enter estrus when they receive more than 14 hours of daylight. This is why their mating seasons fall during the spring and summer months when daylight hours are longer. However, indoor cats kept in areas with constant artificial lighting or bright nights may enter estrus year-round.

Differences in estrus behavior between males and females

Male and female cats display very similar behaviors during estrus. Common signs include loud vocalizations, spraying concentrated, strong-smelling urine on walls or other surfaces, and attempts to escape.

In the case of males, they become aggressive as they compete with other males for females. Females typically exhibit behaviors such as raising their hindquarters high and rubbing their backs against the floor (rolling).

The cycle and duration of a cat’s estrus period

Male cats do not have a specific estrus cycle. When a female is in heat and emits pheromones, the male becomes sexually aroused in response.

A female's estrus cycle lasts about two to three weeks, during which mating occurs. If no mating takes place during this time, she will eventually enter another heat cycle.

Common symptoms observed during estrus

Vocalization behavior in females (Characteristics of the cry)

The vocalizations of a female in heat are distinct and very loud. They emit a cry—often described as a low, moaning wail—that is clearly different from their usual meow. Because they continue to cry throughout the night when they are most active, this can be a major source of stress for owners. This vocalization usually lasts for about a week. Not only the females but males may also cry in response to the females' calls.

Marking behavior in males

A cat’s urine contains information about them (such as age, sex, and size), and by urinating, they assert their territory. Males in heat concentrate their urine and spray it on higher surfaces to advertise their presence to females; this is called "spraying." To ensure their scent isn't covered by other cats, they forcefully spray urine onto vertical surfaces like walls, pillars, and utility poles.

Specific changes in appetite and behavior

Applicable to both males and females, cats in heat are restless and want to go outside. They may also become excited, aggressive, or experience a decrease in appetite.

Females may also be seen lifting their hindquarters or rubbing their bodies against the floor to signal their receptiveness to males.

At-home measures during the estrus period

Do not give excessive attention

During estrus, your cat might become more affectionate than usual, which you might find endearing. However, paying them extra attention can potentially fuel their mating drive. It is best to treat them as you normally would.

Specific care methods to reduce stress

During estrus, cats become easily excited and highly stressed. Because these are instinctive behaviors, they cannot be "trained" out of the cat. Since nocturnal meowing can be a major issue, it is a good idea to help them burn off energy by playing with them during the day. Cats require vertical movement, so incorporate activities using a cat tree.

Mindset required until the heat ends

Because estrus is driven by instinct, it is difficult to suppress. It cannot be resolved through training, and scolding can actually be counterproductive. Therefore, owners need to be prepared to endure the heat period. In the case of males, if there is a female in heat nearby, their own state of arousal will continue. For females, if no mating occurs, they will enter the next heat cycle about two weeks after the current one ends, and this will repeat throughout the season.

You will likely be troubled by nighttime vocalizations, which can be intense enough to keep you awake. Countermeasures like daytime exercise are necessary. While spraying is primarily a male behavior, it can occur in females as well. Because the urine is highly pungent and cannot be easily removed, you should take steps such as attaching waterproof sheets or pet pads to the walls. The risk of escaping also increases significantly, making it essential to take more precautions against escapes than usual.

Considering spaying/neutering to overcome the estrus period

Pros and cons of spaying and neutering

Spaying and neutering involve removing the uterus and ovaries in females, or the testicles in males, to prevent estrus.

The benefits include the cessation of heat cycles, the elimination of estrus-related behaviors, and the prevention of unwanted pregnancies. It has also been shown that life expectancy can increase, which is thought to be because the stress associated with the mating cycle is eliminated. Additionally, it prevents diseases of the ovaries, uterus, or testicles, and in females, it helps prevent mammary gland tumors.

However, there are also disadvantages. Both procedures require general anesthesia, which carries inherent risks for both males and females. Furthermore, because it permanently removes reproductive function, you will no longer be able to have kittens. The biggest drawback is that cats become more prone to weight gain, as changes in hormone balance and decreased activity levels contribute to obesity.

Effects of surgery on a cat's health

In most cases, the surgery has minimal negative impact, but as mentioned, it does make cats more prone to weight gain. Obesity can increase the risk of diabetes, arthritis, and urinary tract diseases. Also, while very rare, there is a possibility of developing autoimmune diseases.

Appropriate timing for surgery and precautions

Spaying and neutering are typically performed after six months of age. Once a cat has entered its first heat, even after surgery, some estrus behaviors may persist. For this reason, and to better prevent mammary gland tumors, it is generally considered preferable to perform the surgery before the first estrus. Even if the cat has already gone into heat, getting the surgery as soon as possible can still lower the risk of mammary tumor development.

Veterinarians have different views on performing surgery while a cat is in heat, so you should check in advance whether your vet will perform the procedure during this time.

Appropriate actions and countermeasures advised by veterinarians

Ideas to reduce stress during estrus

Cats in heat are easily excited and tend to accumulate stress, so it is necessary to help them release that energy.

Since they are often active at night, play and exercise with them more than usual during the day. Tossing food for them to "hunt" and find can satisfy their natural instincts and help relieve stress.

However, giving them extra attention can sometimes exacerbate mating behaviors. When they seek extra affection, do not spoil them; treat them as you normally would.

Cases requiring consultation with a professional

During estrus, cats experience high levels of stress, and owners are often bothered by the night crying, aggression, and spraying. If you cannot cope with these behaviors, consult a veterinarian.

Additionally, cats may lick their genital area so much due to irritation that the skin becomes raw. In multi-cat households, fights between cats can become intense, often leading to injuries that require medical treatment. Since spaying or neutering is the only way to stop the heat, you should seriously consider whether you want to allow these cycles to continue.

Precautions to share with the family

The desire to find a mate during estrus drastically increases the risk of escape. Even cats that usually show no interest in the outdoors will want to go out while in heat. Some cats may even break through screen doors to escape. Therefore, families should thoroughly check for any possible escape routes and be careful to ensure the cat does not slip out when someone is entering or leaving the house.

Summary

Estrus behaviors repeat throughout the season. Not only do cats become easily excited and stressed, but owners are also significantly burdened by these behaviors. The increased risk of escape also leads to dangers such as traffic accidents, getting lost, or injuries and infections from fighting with other cats. Since these issues can be resolved through spaying or neutering, you should carefully consider whether to leave the situation to nature or take action.