Experienced and professional animal trainer provide their insights in answering this question :
A. No not at all. He should have a health check first by your vet just to check he us suitable for anaesthetic but he should be absolutely fine.

How to Identify Common Pet Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced pet care professionals :

The recommended time to spay or neuter a dog is six to nine months. But if your dog is healthy, there is no specific age limit to having the procedure done.
Although there is no specific age limit, the benefits linked to neutering your dog decrease as he ages.
There is new knowledge related to reproductive surgeries that suggest that spaying or neutering pets at that age could potentially lead to an increased risk of conditions such as joint disorders, cranial cruciate injuries, and some cancers.
An age of six to nine months of age may be appropriate for neutering or spaying a toy breed puppy or small breed puppy but a larger or giant breed may need to wait until they are near or over 12-18 months of age.
A University of Georgia study, based on the medical records of more than 70,000 animal patients, found that the life expectancy of neutered male dogs was 13.8% longer and that of spayed female dogs was 26.3% longer.
If your dog`s hyperactive behaviour is also down to hormones, then neutering should help. A lot of owners find their dog chills out more after being neutered whether they`re male or female. While neutering your dog might help to calm them down a bit, sometimes that`s not the only cause of a dog being a bit much.
Though neutering will rid the dog of hormones and reduce sex-based problems, any other behavioral issues will still be present. Many see neutering as an easy fix to reduce aggressive behavior; however, when the dog`s behavior is examined, and the real reason is found, it`s usually from outside stimuli and not hormones.
Reflecting the increased risk of joint disorders for males, the suggested guideline for neutering males is delaying neutering until well-beyond 2 years. Lacking a significant occurrence of increased joint disorders or cancers in neutered females, those wishing to neuter should decide on the appropriate age.
Large-breed dogs (over 45 pounds projected adult body weight) should be neutered after growth stops, which usually is between 9 and 15 months of age.
Dogs neutered before puberty don`t experience this rise in hormones and their long bones particularly continue to grow for a longer time resulting in greater height when growth does cease than their un-neutered counterparts.
According to several studies, the main behaviors that are affected consistently in male dogs following neutering (I guess I am being politically correct now) include: decreased sexual behavior (primarily, mounting behavior), urine marking (depositing urine on objects), and roaming.
Behavioural problems in most cases are reduced or have even disappeared after neutering (male dogs 74%, female dogs 59%). At best, hypersexuality and connected problems are changed as expected. 49 of 80 aggressive male dogs and 25 of 47 female dogs are more gentle after neutering.
Neutering keeps your dog healthier. A final positive aspect of neutering your dog is that neutered pets tend to have fewer health problems. Neutering is the removal of the testicles. Without these organs, testicular cancer is no longer a concern and the risk of prostate problems is reduced.
Your neutered male dog may also be uneasy after neutering, and they don`t like feeling uncertain. Your dog may suffer separation anxiety, excessive barking, or hiding. A few male dogs will suffer from separation anxiety after the neutering process and may find it harder to relax if you`re not nearby.
Following a general anesthetic, some dogs cry and whimper quite loudly. Neutered dogs usually feel some degree of discomfort immediately following their procedure. It is not unusual for your dog to whine or whimper after being neutered, although some dogs can tolerate pain more than others.
The neutering procedure that will be performed is an orchiectomy, the removal of both testicles. This is done through a small incision in front of the scrotum. The incision is typically closed with buried, dissolvable sutures. The scrotal sac is left intact, but it usually disappears within a few months.
In males, neutering decreases the chances of developing prostatic disease and hernias, and eliminates the chances of developing testicular cancer. It also reduces problems with territorial and sexual aggression, inappropriate urination (spraying) and other undesirable male behaviors.
Most controlled scientific studies on this question (and there have been many!) show that whether a dog is spayed or neutered has no impact at all on the likelihood that they will be aggressive in any given circumstance.
In general, however, neutering will have no effect on your dog`s personality, but it may influence his mood and make some behaviours more or less likely.
Early-age neutering does not stunt growth in dogs or cats (a once-held belief), but may alter metabolic rates in cats. The anaesthetic and surgical procedures are apparently safe for young puppies and kittens; morbidity is lower and recovery is faster than in adult animals.
Your vet will probably recommend that your dog gets plenty of rest for the first 48 hours following surgery and avoids any form of strenuous activity. No walking, no playing, and no running around! Stitches can easily be pulled apart, leaving a painful open wound that will be at risk of infection.
Vets advise you to let your dog rest for up to 48 hours after neutering. Light short and slow walks just for them to do their business is fine until you bring your dog in for their 3-day check-up.
The most common type of altercation involves neutered males aggressing toward intact males. Neutered males smell like females. The scent of an intact male cause many neutered to react negatively toward them since intact males smell male.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Q. Is neutering a good idea? What are the main aspects to consider?
ANSWER : A. Neutering is a procedure that surgically removes a dog’s testicles for the purpose of canine population control, certain medical health benefits, and behavioral modification.

There are several pros and cons to neutering. The positive aspects of neutering include the following:
1. Reduces the risk of prostate disorders, including prostate infections, prostate cysts, or enlarged prostate tissue. It also reduces the risk of testicular cancer, perineal hernias, and perianal fistulas.
2. Reduces the risk of dominance and aggression in many dogs due to a reduction in the amount of circulating testosterone.
3. Reduces the occurrence of sexual behaviors, such as humping, urine marking, or licking of genital regions.
4. Population control – neutering prevents dogs from creating more litters of puppies that need homes.

The following are possible issues to consider:
1. Neutering is a surgery that requires general anesthesia causing slight risks involved in placing an animal under sedation and anesthesia. Performing bloodwork prior to any anesthetic procedure can help decrease the risk of complications prior to surgery.
2. There is an increased risk of neutered dogs becoming prone to obesity because of a change in hormones and activity level.
3. Neutering your dog at too early of an age can have complications.

Overall, neutering is a good idea for your dog in order to prevent population overgrowth and specific medical issues that can result if your dog remains intact. Consult with your veterinarian on the details of surgery and any risk factors based on your dog’s age and breed.

The AVMA supports the concept of pediatric spay/neuter in dogs and cats in an effort to reduce the number of unwanted animals of these species. Just as for other veterinary medical and surgical procedures, veterinarians should use their best medical judgment in deciding at what age spay/neuter should be performed on individual animals.

Read Full Q/A … : Spay/Neuter Your Pet

Q. Whenever I take my dog on walks he always barks at people and others dogs in my neighborhood. What should I do to resolve the problem
ANSWER : A. The very first thing to do is to make sure your dog is getting sufficient physical and mental exercise every day. A tired dog is a good, happy dog and one who is less likely to bark from boredom or frustration. Depending on his breed, age, and health, your dog may require several long walks as well as a good game of chasing the ball and playing with some interactive toys.

Figure out what he gets out of barking and remove it. Don’t give your dog the opportunity to continue the barking behavior.

Ignore your dog’s barking for as long as it takes him to stop. That means don’t give him attention at all while he’s barking. Your attention only rewards him for being noisy. Don’t talk to, don’t touch, or even look at him. When he finally quiets, even to take a breath, reward him with a treat. To be successful with this method, you must wait as long as it takes for him to stop barking. Yelling at him is the equivalent of barking with him.

Get your dog accustomed to whatever causes him to bark. Start with whatever makes him bark at a distance. It must be far enough away that he doesn’t bark when he sees it. Feed him lots of good treats. Move the stimulus a little closer (perhaps as little as a few inches or a few feet to start) and feed treats. If the stimulus moves out of sight, stop giving your dog treats. You want your dog to learn that the appearance of the stimulus leads to good things.

Teach your dog the ‘quiet’ command. Oddly, the first step is to teach your dog to bark on command. Give your dog the command to “speak,” wait for him to bark two or three times, and then stick a tasty treat in front of his nose. When he stops barking to sniff the treat, praise him and give him the treat. Repeat until he starts barking as soon as you say “speak.” Once your dog can reliably bark on command, teach him the “quiet” command. In a calm environment with no distractions, tell him to “speak.” When he starts barking, say “quiet” and stick a treat in front of his nose. Praise him for being quiet and give him the treat.

As in all training, always end training on a good note, even if it is just for obeying something very simple, like the ‘sit’ command. If you dog regresses in training, go back to the last thing he did successfully and reinforce that before moving on again. Keep sessions short, 15-20 minutes max, and do this several times a day.

Q. How do I determine how much my overweight pet should weigh?
ANSWER : A. There are many tools to determine overweight and obesity levels in pets. A new tool, morphometric measurements and body fat index, are available to accurately determine a pet’s ideal weight; this will allow an accurate determination of the amount of food a pet should receive to achieve weight loss. Feeding the correct amount will lead to greater weight loss success.

There are many weight loss food options to help pets reach their ideal weight. Your veterinarian can help make a ideal weight recommendation. Here are some tips to help your dog lose weight in a healthy and safe way:

1. Diet: Providing a healthy and well balanced diet is essential to your pet’s overall health. Finding the right food for your dog can be a challenging process. For those overweight animals many commercial dog companies offer weight loss diets, but it is important to evaluate food labels for adequate nutritional content.

You want to ensure you are not missing other essential vitamin or mineral content. Volume of food is also important and the amount of food that works for one breed of dog may not be the same for another breed of dog. Portion control as opposed to free-choice feeding can help your dog to drop a few unnecessary pounds.

There are also prescription weight loss foods designed by veterinary nutritionists, such as Hill’s r/d (http://bit.ly/1AoENSd). Some pet owners find that home cooking is the best option for helping to provide a well-balanced and realistic diet plan. There are websites such as balanceit.com that offers recipes to fit your dog’s specific needs. Consulting with your veterinarian or a veterinary nutritionist to find the appropriate diet is a great way to help your dog be as healthy as possible.

2. Exercise: Another great tactic for weight loss for your dog is exercise. Whether this is through running, walking or playing with a favorite toy all of these are wonderful types of exercise to help keep your dog at a lean and healthy weight.

For those pet owners with busy schedules utilizing professional dog walking services or playtime through dog daycare services is another option. It has been shown that those pet owners that exercise regularly with their pets generally live a healthier lifestyle.

3. Physical therapy: As animals age pet owners offer encounter their favorite canine having more difficulty walking and have a dwindling desire to play with toys. Physical therapy, specifically hydrotherapy is a wonderful way to help older and arthritic animals gain more mobility and lose weight. Hydrotherapy has been proven to have several therapeutic effects on the body including, muscle strengthening, relief of swelling, decreased joint pain, less stiffness in limbs, improved circulation, weight loss, and increased tissue healing to name a few. For more information on the benefits of hydrotherapy:
http://bit.ly/1w1qqoy

4. Veterinary visit and blood work: Weight gain can also be related to underlying health concerns such as hypothyroidism or other endocrine disorders. Scheduling a veterinary evaluation and routine blood work can be another important component in increasing the longevity of your dog’s life. Conditions such as hypothyroidism that predispose dogs to gain weight can be treated with a daily medication to improve hormonal balance. If feel that your dog is unnecessarily overweight there can be an underlying health condition that needs to be addressed.

5. Healthy treats: Pet owners love the chance to reward their favorite canine companion with treats and most dogs jump at the chance to consume these delicious products. The problem is many treats, which can include commercial dog treats or table scrapes can add many unnecessary calories to your dog’s daily intake. Reading labels and making note of the calories in these treats is an important component of understanding your dog’s overall health. Treats should not exceed more than 10 percent of your pet’s daily calories. There are healthier treats that can be offered to your pet to keep calories lower yet provide a fuller sensation. A pet owner can add steamed or pureed vegetables, such as carrots, green beans or sweet potato to add more fiber and thus a fuller feeling for your dog.

Q. Rescued a dog almost two weeks ago, and now that her kennel cough is gone her personality shines!! No previous training, how should I start?
ANSWER : A. POST FOUR:

After your dog is familiar with the behavior you lured from scratch, and taught to your dog, you can start to use the “no-reward marker” I talked about. What you do is ask the dog to perform the behavior, and if the dog does not perform the behavior, you simply say your no-reward marker (choose one: eh-eh, hey, uh-oh, oops) show them the treat, put it behind your back, and BRIEFLY ignore your dog. Just turn your back for a second or two, before turning back to your dog and saying, “let’s try that again.” When you’re ready to start over with your dog, make sure you move around. If you are repeating the same cue while in the same position, while your dog is in the same position, you are likely to receive the same results. The more you move around, and start fresh, the better your chances are of having your dog listen to your cue the second time around. BIG rewards when they dog it successfully! Lots of praise and treats.

My no-reward marker is “hey.” When my dog does something wrong I say, “hey” and she immediately understands that she needs to offer a different behavior. This is clear to her. I don’t have to say it in a mean way, I simply say, “hey” in a normal tone of voice and she understands what the word means.

Once you’ve built up that connection and communication with your new dog, you can work on all kinds of fun behaviors! I personally enjoy the more zen-like behaviors: https://www.youtube.com/watch?v=ruy9UMcuGh8

I like to teach my dog fun tricks that offer her a “job” to do of sorts like object retrieval: https://www.youtube.com/watch?v=I4iertZSva8

(object retrieval training completed; what it looks like: https://www.youtube.com/watch?v=jx0Dml28FGY)

Scent-games are fun too! Very confidence building. Hide a REALLY smelly treat in a box, and place that box in a line of boxes. Let your dog go in the room while saying something like “search!” or “find it!” and watch them hunt for that smelly treat! Lots of rewards when they find it!

Q. My cocker spaniel is 9 years old. He has involuntary bowel movements (little drops) very frequently, especially when he is asleep.
ANSWER : A. Is your dog on a senior dog food? I would get your dog on a high quality high protien dog food. Ask a pet store assosicate or your regular vet for a food recommendation. When you buy a better food the dog will have to eat less to get the same amount of energy from the food. The dog has to eat more of the cheaper foods to get the energy it needs from it. Meaning more poop and buying more food. So the cost really evens out. So the lessen your dogs bowel movements get on a better senior dog food. Next talk to your vet they may have a recommendation. If you switch dogs do it slowly by mixing the foods. Start with 10% new 90% old mixed for at least a week until you have switched to 100% new 0% old. Senior foods have more fiber to help with bowel movements. Take the dog outside to go potty more frequently, right before bed time.

Read Full Q/A … : Symptoms Questions & Answers

Q. My 4 yr old male Catahoula Leopard Dog mix is a rescue. He’s become very possessive of me around larger dogs. How can I correct this behavior?
ANSWER : A. Sudden behavior changes can sometimes indicate an underlying health issue, so scheduling a checkup with your regular vet is always the first step. Once any health issues have been addressed, then you can address the behavioral ones. It is very common for dogs to become “possessive” of people or objects when around other dogs or people, and is called location guarding. Possession of objects or places can be a little easier to manage, however possession around other dogs can be treated as well. Working from a distance in a technique called BAT or Behavioral Adjustment Training may help. This technique involves your dog and another calm dog. Start off at a far distance and then move in until your dog becomes reactive or wary of the other dog. Move back a small amount and wait for your dog to become calm. If he shows calm behavior, reward with lots of praise, treats and love! If he becomes agitated or possessive, move back until he is calm, or stop the session completely and try again later. While this may take some time, it can help dogs learn that other dogs are not a threat to them or their people. Reading more information about BAT training or contacting a local trainer in your area can help with further advice and techniques!

Q. My unfixed grown male dog is slobbering and trying to mount my new male puppy. What’s that about?
ANSWER : A. Mounting behavior can be both a sexual thing in dogs, or a behavioral one. If both dogs are male, it may be that your older dog is trying to establish that he is the boss of the house by trying to mount your younger one. Stopping the behavior is best to prevent any fights from breaking out. Both female and male dogs can do this to each other, and spay/neuter status does not usually play any factor if behaviorally related.

If your younger dog is female, or not spayed, and is about 6-7 months of age, it may be that she is coming into her first heat and your male is very interested in her. Dogs should not be bred during their first heat, and if you do not wish to have puppies in the future, one or both dogs should be fixed.

Q. My dog was neutered 6 months ago, but he still humps pillows till full climax. Is this normal?
ANSWER : A. Humping behavior in dogs can be a non-sexual behaviorally related issue in addition to a sexual reproductive one. If your dog was neutered 6 months prior, it is likely that the hormones in his body have reduced already and are not the cause of his behavior. HOWEVER dogs that have previously been bred or had sexual activity prior to neutering may still exhibit interest in and sexual behavior toward in-heat females.

In most cases, the humping behavior is not sexually related and can actually be a sign of “dominance” in dogs. While this term is largely outdated in behavior, it is one that is done usually on one dog to another to show “hey I’m the boss, i wanna be in charge”. Dogs can sometimes take turns doing various similar behaviors during play, or one dog may want to take charge and only allow him or herself to do it. (Yes females can do this too!). If your dog is humping a pillow or toys, he may just be trying to tell his toys he’s the boss! If you feel uncomfortable with this behavior, then stopping him in the act and distracting him with a different game is best.