Pros and Cons of Neutering Dogs

Male dogs are, for the most part, neutered before they’re adopted into a home. It’s estimated that about 80% of male dogs in shelters have been neutered. But what exactly does this mean? And is it something you should consider doing with your own pet? Let’s break down what neutering means and how it can impact your dog’s health and behavior:

While sexual maturation varies among breeds, dogs begin to go through puberty when they are around 6 months old.

While sexual maturation varies among breeds, dogs begin to go through puberty when they are around 6 months old. The age of sexual maturity varies by breed and size, but most dogs are physically capable of breeding at around one year old.

While the benefits of neutering will be discussed in this article, there is also a downside to consider: some experts believe that castration can lead to health problems in male dogs later in life.

Neutered dogs can still mount other dogs and even furniture.

Neutering does not affect your dog’s desire to mount other dogs or even furniture. Mounting is a form of dominance, and neutered dogs may still display dominance behaviors. When they do, it is usually because they are under stress or trying to establish themselves as the alpha leader of the pack.

If your dog has a habit of mounting other dogs or furniture, you should consult with a professional trainer who can help you find ways to correct this behavior at home.

While neutering may affect a dog’s behavior, many factors play into your dog’s temperament.

While neutering does affect a dog’s behavior, it is important to remember that many factors come into play when determining your dog’s temperament. These include:

  • The breed or mix of the dog
  • How he was raised
  • Whether he was socialized well as a puppy (and what, if any, socialization issues he might have)
  • How much training and discipline he has received throughout his life (including how much time you spend with him)
  • Your family dynamics, including whether you are able to provide daily walks and attention to your pup (or if he spends most of his time outside with limited human contact).

Neutered male dogs can still mark their territory by urinating on objects and areas around your home.

Neutering male dogs does not prevent them from marking their territory by urinating on objects and areas around your home.

Your dog may still spray urine to mark his territory when he is neutered, but it’s very unlikely that you will have to clean up as much as before.

Neutered dogs can still be aggressive toward other animals and strangers.

You may assume that neutering your dog will make him less aggressive, but this is not always the case. Neutered dogs can still be aggressive toward other animals and strangers for many reasons, including genetic predisposition or psychological conditions. Male dogs are more likely to be aggressive than female dogs because of their natural territorial tendencies. Aggression can also be caused by boredom, lack of exercise and training, or poor socialization during puppyhood. If you notice any signs of aggression in your puppy (like growling at other people), take him to a veterinarian who specializes in behavior problems so that he can help identify what’s causing it and recommend the best course of action for preventing future occurrences.

Neutering does not guarantee that an aggressive behavior will be eliminated in a dog that exhibits aggression before or after the procedure is done.

Neutering does not guarantee that an aggressive behavior will be eliminated in a dog that exhibits aggression before or after the procedure is done. Aggression is a complex behavior and can have many causes, only one of which may be neutering.

In addition to neutering, there are other things you can do to help your dog with aggressive behaviors. First of all, it’s important to know that aggressive behaviors in dogs can be caused by many different factors:

  • Medical problems such as hypothyroidism (low levels of thyroid hormone) or infections such as parvovirus (the most common infectious cause of death among dogs).
  • Lack of training and discipline during puppyhood/adolescence can create fearfulness around unfamiliar people and other pets that leads to territorial aggression once they’re older; this kind of aggression may also stem from being overly protective over their owners or territory.
  • Early spaying/neutering–especially under age 8 months–can increase risk for certain types of aggression later on because sex hormones play an important role in controlling social behaviors such as dominance hierarchies

There is no benefit for a healthy adult male dog to have a testicle retained at the time of castration

Some dogs do not need to be neutered. For example, if your male dog has been neutered and the surgery was a success, there is no benefit for him to have the retained testicle removed at this time.

If your dog is currently in good health and does not have any known medical issues, then it may be best to wait until he is older before making any decisions about his castration.

The main concern with keeping one testicle in place as an adult is that it could develop cancer or cause urinary tract problems later on in life. Additionally, if your dog does not have any medical issues and you have no plans of breeding him in the future then there is no reason why you should neuter him at this point in time!

If you’re considering getting your male dog neutered, take time to evaluate the pros and cons first

If you’re considering getting your male dog neutered, take time to evaluate the pros and cons first.


  • Your dog will be healthier. Neutering prevents many of the health problems that can occur in unaltered dogs, including testicular cancer, prostatitis and perianal fistulas (abnormal openings between the rectum and genitals). It also reduces risk of prostate enlargement and urinary tract infections in older males.
  • You’ll save money on pet food. The cost of raising puppies is much higher than that of raising an adult dog whose breeding days are behind him or her. If you plan to breed your female at some point, it’s best that she not become pregnant before reaching adulthood (around one year old) — this helps prevent bone deformities in puppies caused by calcium deficiency during early development.

It can decrease unwanted behaviors.

Neutering is a common procedure for male dogs, and it involves removing the testicles. The pros to neutering include:

  • It can decrease unwanted behaviors. Neutered dogs are less likely to mark their territory with urine, roam away from home and cause injury or death, or exhibit aggressive behavior than intact males do.
  • You may be able to travel more easily with your dog if you have him neutered. Some airlines require that both female and male dogs be spayed or neutered before flying as cargo, so this could be good news if you want to take your pup on vacation but don’t want him running around the airport unsupervised!

Neutering also has cons—for example:

Neutering your dog can provide benefits to other animals.

Neutering your dog can provide benefits to other animals. For example, when a male dog is neutered it reduces their risk of roaming and fighting, which can lead them to mate with other animals or become injured by them. It also reduces their risk of contracting diseases from mating or physical interactions with other dogs, especially if the neutering occurred before puberty. In addition, neutered dogs have less of an urge to roam because they do not need space for mating rituals (like circling) and are less likely to be taken to an animal shelter because they cannot reproduce.

It may lessen cancer risk.

Some studies have found that neutered dogs have a lower risk of developing certain types of cancer. The connection between testosterone and cancer is well established, but it’s not clear whether neutering affects the risk for all cancers or just certain ones. Neutering may be especially beneficial for reducing the risk of prostate cancer in male dogs.

Neutered dogs are less likely to wander

Another benefit of neutering dogs is that it can be easier to keep them from wandering. The urge to roam, which is particularly strong in male dogs, may be reduced by neutering. Keeping your dog on a leash when outside will help ensure that he/she doesn’t wander off and get lost or cause any other problems. If you have an unneutered male dog, consider neutering him so he won’t feel the need to wander off!

Neutering may reduce aggression.

Neutering can reduce aggression.

Neutering can help to calm a dog’s behavior.

Neutering can help to reduce territorial instincts.

Neutering may help to reduce aggression towards other animals.

The surgery is associated with medical issues.

  • Neutering is associated with testicular cancer, which affects one in every seven male dogs.
  • The risk of osteosarcoma (bone cancer) increases by 60 percent after neutering.
  • Hypothyroidism (an underactive thyroid gland) can be as high as 80 percent for dogs who have been neutered before two years old.
  • Prostate cancer increases by a factor of three following castration.* Diabetes mellitus type 2 is known to be more common in neutered dogs than intact males and females.

Unneutered males can make good pets.

Females are also more likely to be spayed. And while there are some benefits to spaying your pet, there is no reason why you shouldn’t consider keeping an unneutered male as a pet. In fact, many people find that intact males can make excellent companions. Just like their female counterparts, not all neutered males will exhibit the same behaviors—and neither will all intact ones! If you happen to live in a multi-dog household where you want your pets to get along but don’t want them reproducing (or even having interactions with other dogs), neutering might be a good option for you as well. However, if you’re looking for a companion who will come when called and sit by your side on lazy afternoons without getting into trouble or causing damage around the house then an unaltered male may just be what’s right for you!

You should neuter your dog unless there is a good reason not to.

Neutering dogs is the best way to prevent overpopulation. It reduces aggression, cancer risk and roaming behavior, which all lead to negative outcomes for both animals and humans.

Neutered dogs are less likely to roam, fight or bite than unaltered ones. They also tend to be calmer and less aggressive in general. The downside of neutering is that it does not resolve behavioral issues that may have existed prior to surgery; however, you can still have an amenable relationship with your dog even if there are some pre-existing behaviors that remain unchanged after castration or spaying (depending on how you look at it).


If you’re not sure whether or not your dog should be neutered, it’s best to talk with your veterinarian. They will be able to give you more information on the benefits and risks of this procedure. It’s important to remember that neutering isn’t right for every dog, so don’t make a decision based solely on what someone else says. Do your research and evaluate all of the options available before deciding if this is right for your pooch!