How Long After Neutering Cat Is Testosterone Gone (And Why)?

Exact Answer: 6 Weeks

Neutering a male cat has several advantages, ranging from removing icky urine-marking habits to greatly reducing aggression problems. However, once your beloved pet has been treated, the hormones may take some time to leave his body completely.

An orchidectomy is a procedure for neutering or castration of male cats. In the neutering process of a tomcat, they incise one side of the scrotal sac such that the sac can be excluded from the testicle completely. Make sure that it is removed correctly when they undergo an operation with anesthesia. External sutures are rarely necessary. These cats are known as cryptorchids, and locating and removing the testicles would necessitate more intensive surgery. In this article, you’ll know more about neutering a cat

How Long After Neutering Cat Is Testosterone Gone

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How Long After Neutering Cat Is Testosterone Gone? 

Testosterone GoneTime
Dogs6 weeks
Rats2 weeks

The testicles of a tomcat, which contain the male hormone testosterone, are removed during neutering surgery. Male reproductive characteristics are driven by these hormones. A male cat is no longer powered by his hormones until they are fully gone, which is understandable. It is advised that cats should be neutered at around four months after they are done with their basic vaccinations.

You can note that your male cat’s hormonally induced behaviors have either disappeared or been significantly reduced after about six weeks, much to your delight. Restlessness, urine spraying, aggression, repetitive vocalization, and repeated attempts to wander and run away are only a few of the annoying habits. While uncommon, some male cats can continue to engage in these behaviors out of habit, particularly if they were fixed at a younger age, maybe over a year.

According to a study, neutering tomcats before they reach the age of five months could be preferable. If you repair a cat while he is still a “kitten,” you may reduce the chances that he has already established and adopted hormonally charged behavioral habits, such as urine marking or fierce and aggressive combat with other cats in the neighborhood. Keep in mind that after surgery, your male cat will remain fertile for a while. As a result, be cautious for a while and keep your fluffball away from any unfixed female cats.

Neutering Cat

Your cat will most likely experience some anesthetic effects after you carry him home. Typically, vets add a protective ointment to their eyes to prevent them from drying out. The ointment will cause the cat’s vision to become fuzzy. As a result, you must confine him to a dark, wet, and quiet indoor environment for the first twenty-four hours after surgery.

Why Does It Take This Long For Testosterone To Go After Neutering? 

It might be frustrating when you see your child is having any behavioral issues. A study, on the other hand, claims that it takes a period of six to eight weeks for all of the hormones to fade out. Don’t get too worked up if your cat continues to behave in his normal hormonal manner. Allow his body to change and adapt to the surgery over some time. This is why it takes some time for testosterone to be gone after neutering.

It is observed that the process of castration can decline the tomcat behaviors of a part of the sexually dimorphic males as their male brain gets masculine when a kitten takes birth. But the neutering process can’t remove all the male behaviors. Castration before sexual maturity can block different secondary sexual peculiarities in a tomcat.

Neutering Cat

Male urine has an especially heavy and pungent odor. The odor of the urine changes after castration, becoming more normal. Most of the tomcat owners believe in the theory that neutering their male pets makes them cleaner, odor-free, and better groomers. That is why a cat’s neutering is so important.


The majority of cat owners agree that neutering their cats would make them healthier and more well-behaved pets. Also, they allege that the males sound to be unspotted, less scented, and advanced groomers after neutering. Although the procedure is both cost-effective and beneficial to the pet, you must understand how to properly care for your pet after the procedure. It’s a good idea to know what to do and what not to do while caring for a neutered cat.



Last Updated : 23 February, 2024

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22 thoughts on “How Long After Neutering Cat Is Testosterone Gone (And Why)?”

  1. The article really makes it easy to understand why it’s important to wait the six weeks after neutering a male cat before you can expect to see changes in behavior. Very informative.

  2. There are certain misconceptions here about the behavioral effects of neutering a cat. It’s not guaranteed to change everything about a cat’s behavior.

  3. Avatar of Mitchell Heather
    Mitchell Heather

    I personally think that the owner should be more informed about the process so they know what to expect after neutering their cat.

  4. Keeping in mind that the process of castration can’t remove all the male behaviors, it’s good for the cat owner to be informed.

  5. The study mentioned was interesting. I definitely think waiting until a cat is at least 5 months old for neutering is important.

  6. The conclusion was very helpful, especially with the emphasis on properly caring for a neutered cat. Good read.

  7. The six-week time frame seems to be really important for any cat owner considering neutering a tomcat. Definitely worth reading.

  8. Avatar of Taylor Alexander
    Taylor Alexander

    The fact that the article takes the time to address why it takes so long for testosterone to disappear is important. Good article.

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