Experienced and professional animal trainer provide their insights in answering this question :
A. He may be itchy or irritated due to a skin problem, allergies, or a urinary issue. Please have him looked at by a vet, because it sounds like he’s being bothered by somthing.

How to Identify Common Pet Problems ?

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

You will likely be advised to apply cold packs to your dog`s testicular area in order to ease swelling in the remaining testicle or testicles during immediate recovery. If swelling does not go down, you will need to return to the veterinarian for further treatment.
If your dog licks his testicles, and the testicles look normal, no problem. However if the testicles are red and raw, you do need to investigate the cause and stop the cycle. A veterinarian`s examination may be helpful in determining if the scrotum and testicles are normal or not.
Most of the time, what you see on the outside of a dog`s penis is actually the prepuce or sheath—the skin and other tissues that surround the non-erect penis. The penis itself is covered with a mucous membrane, which makes it appear moist and bright pink or red.
Acute inflammation of the testis and/or epididymis is most commonly infectious (bacterial, fungal or viral). The source of infection can be hematogenous or urologic or by direct inoculation. Clinical signs include pain and enlargement of the testis or epididymis.
Clean your dog`s living area. Give your pup a medicated bath two times a week for two to three weeks using a shampoo with benzoyl peroxide. If the case is not mild enough to be treated with topical treatments, your vet can prescribe oral antibiotics or a medicated ointment.
Topical hydrocortisone cream or topical neosporin ointment (i.e. triple antibiotic ointment) are often safe to use in small amounts. However, try to ensure that your dog does not lick them off.
A dog with a newly acquired infection will often have an enlarged scrotum or an enlarged testicle and may have a skin rash on the scrotum. The dog may be infertile. In chronic or long-standing cases, the testicles will atrophy or become shrunken.
The skin that surrounds a dog`s vulva can develop rashes just like any other area of the body. Because the vulva touches the ground whenever a dog sits, it frequently comes in contact with irritants, allergens, and insects that may bite. Parasites or skin infections can also cause rashes around a dog`s vulva.
Some ideas include using bitter sprays to discourage licking, having your dog wear a special collar to prevent access to hot spots, or keeping your dog close by your side when you`re home. Addressing anxiety or boredom.
A mild dog shampoo and a bit of gentle scrubbing will do the trick. Be sure to always use a fresh water rinse when cleaning your puppy`s privates. Dried soap or shampoo can cause irritation.
Many things can cause this inflammation, such as bites, injuries, infections and foreign bodies trapped inside the prepuce. While treatment is simple and often effective, the underlying cause needs to be identified and treated, or the condition is likely to recur.
Fleas, mites, and ticks can cause irritation, exposing your dog to bacteria, yeast, and fungal infections. Demodex mites, walking dandruff, flea allergy dermatitis, and sarcoptic mange (caused by the Sarcoptes scabiei mite) can all cause rashes on your dog`s skin, including her belly and groin area.
Wash the rash with soap and water. Pat the area dry (allow plenty of time for it to dry). Apply an over-the-counter antifungal cream or powder to the rash in the morning and at night. Follow the directions on the cream packaging.
If your dog has an infected wound that does not respond to primary treatment, you may need to look at an antibiotic cream. An excellent essential choice for antibiotic cream for dogs is a cream that contains either neomycin or bacitracin.
The Problem of Irritated Skin after Grooming Your Dog

Dog`s skin is much thinner and more easily irritated than a human`s. This can result in your dog repeatedly licking the area, causing inflammation and redness, but with no visible signs of cuts or bleeding.

Licking is a natural behavior for dogs. They use their tongues to groom themselves and keep clean, and that includes their private parts. Dogs` balls can sometimes get dirty or irritated, and licking them can provide some relief. Dogs may also lick their balls out of boredom, anxiety, or as a form of self-soothing.
Dogs are typically fully healed and can resume their normal exercise routine 7-10 days after being neutered. Although, sometimes they may seem ready for their normal routine before then, it is important to limit your dog`s exercise before the 7-day mark to encourage a complete recovery.
The testes develop near the kidneys within the abdomen and normally descend into the scrotum by two months of age. In certain dogs, it may occur later, but rarely after six months of age. Cryptorchidism may be presumed to be present if the testicles cannot be felt in the scrotum after two to four months of age.
The excessive licking behavior in dogs has been, for many years, attributed to anxiety and stress release. While this may be the case for some canines, recent research has suggested that gastrointestinal issues may actually be a major factor in the development of the behavior for many canines.
Clean the skin with a mild, water-based antiseptic spray or wipe (like Douxo Chlorhexidine 3% PS pads) or an antibacterial shampoo. Apply a veterinary-recommended hot spot treatment spray that is safe if ingested. One example is Vetericyn Plus Antimicrobial Pet Hot Spot Spray.
Distract them – Try giving them something else to do that stops them licking, such as a chew toy or a food puzzle. Training – Try training them to sit, or teach them to do something that redirects their licking and is rewarded by your affection and attention, such as giving you their paw or rolling over.
Dogs with UTIs generally attempt to urinate very frequently whenever they go outside. They also may strain to urinate, or cry out or whine when urinating if it is painful. Sometimes you might even see blood in their urine. Dripping urine, or frequent licking of the genitals, may also signal that a UTI is present.
No, it is not recommended that you use baby wipes on dogs, or any other pets. That`s because the pH level on human skin is different to dogs so baby wipes are unsafe because they may cause irritation or itching.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Q. My dog licks his feet and legs and they are turning brown. He is a white dog. Can you help?
ANSWER : A. Licking the feet and legs can be caused by a number of things in dogs including allergies, illness or even stress behaviors. Allergies are the most common in dogs, with yeast infections coming in second. Allergies can cause the area to become red and itching, making your dog want to lick and chew on them. Over time, the area may become stained from saliva, especially in lighter or white-coated dogs. Yeast infections are also common between the toes, and may cause a smelly “corn chip” smell to appear near your dog’s feet. Again, dogs will attempt to lick and chew to relieve the itch. Keeping the feet clean and dry can help relieve both allergies and infections and pet wipes or a baby wipe of all paws when your dog comes in from outdoors may also help. Keeping your dog from licking the space with either dog booties or an Elizabethan collar is also good as it will prevent secondary infection and staining of the paws and legs. If your dog is determined to keep licking and keeping the feet clean and dry do not help, then your vet can help by providing a medication to treat any infection or provide relief of allergies.

Q. My dog has no fleas, but is scratching and licking continually. He has been through a round of prednisone and it hasn’t helped. What can I do?
ANSWER : A. Itching can be caused by more than just external parasites, and if your dog is already on a flea medication, then it is possibly not the case. Itching can indicate anything from allergies to even minor skin infections causing problems. If your dog has been treated with prednisone (a steroid that inhibits the immune system) and it did not help, then looking at other options may help.

Food allergies are very common in dogs and can present with itching and licking all over the body rather than on just one spot. Common food allergens include ingredients such as wheat, corn and soy products, however dogs can be allergic to almost anything! Starting a food trial of an allergen-friendly diet from your vet or pet store that avoids these common ingredients may help. The food should be switched over a period of 7-9 days and then given about a month to decide if it is helping.

Small skin infections or yeast in the skin can also cause itching, however this itching is often more specific to a certain area of the body (such as the toes, or base of the tail). Your vet can perform a skin scraping of the area to be cultured at a lab to look for any yeast or bacteria. If they are present, a medication given either orally or placed on the affected area can clear up the infection.

In some cases, licking and chewing can actually be due to a boredom or anxiety behavior. Dogs may lick one spot obsessively to the point of creating sores or wounds in the area. Stopping your dog from licking and chewing either through the use of dog booties, no lick strips, T-shirts or even Elizabethan collars can break the habit and give the area time to heal. Licking and chewing can also cause the spread of bacterial infections so should be deterred even if not behaviorally caused.

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. My dog keeps licking himself in the same area, what does this mean?
ANSWER : A. Excessive licking in one area often leads to a condition called Acral Lick Dermatitis or Lick Granuloma. By constantly nibbling on one spot, which is usually on one of front legs, dogs can cause skin irritation and inflammation and not uncommonly skin infection.

There is a long list of possible causes of this problem. In many dogs this is purely a behavioral issue related to anxiety, boredom or stress. Dogs with joint pain like to lick over the painful area to alleviate pain. Skin allergy or infections, skin foreign bodies predispose dogs to Acral Lick Granuloma as well. Finally, low thyroid hormone level is believed to play a role in developing Lick Granuloma.

Treatment is often long, and close cooperation between the owner and the vet is required. The effort should ultimately be directed to identify and treat the underlying cause.

Read Full Q/A … : Excessive Dog Licking

Q. Which common foods are poisonous to pets?
ANSWER : A. That’s a great question. As responsible pet owners we need to be aware of food items that can be harmful to our canine or feline companions. Here are some of the most common foods proven to cause illness in our animals at home:

Chocolate: A favorite and irresistible treat amongst most humans, chocolate is considered toxic to dogs. In very small amounts it is usually not a huge issue, but with larger volumes and with darker chocolates pet owners should be concerned. Chocolate contains methylxanthine theobromine, which is similar to caffeine. Chocolate ingestion can cause vomiting, diarrhea, hyperactivity, issues with normal heartbeats, seizures, and in some severe cases, death. It is best to keep your favorite chocolate treats in a good hiding spot and out of reach of your dog or cat.

Grapes and raisins: Dogs should not consume grapes and raisins because of the risk of acute kidney failure. Most dogs experiencing grape or raisin toxicity will begin to have vomiting and/or diarrhea within 6-12 hours of ingestion. Other abnormal clinical signs include lethargy, abdominal pain, dehydration, and tremors. Kidney failure develops within 24-72 hours of the initial ingestion. There are some dogs that do not experience these devastating side effects. It is best to contact your veterinarian or veterinary emergency facility if you believe your pet has ingested grapes or raisins.

Garlic and onions: We often forget that our meals contain these two popular ingredients and will allow our furry companions a few bites or licks. Onion and garlic both can cause a type of poisoning that results in damage to red blood cells, making them more likely to rupture. They can also cause stomach upset and mouth irritation. Look for pale gums, increased breathing or drooling or any vomiting or diarrhea.

Bread dough: Unbaked bread dough is considered poisonous to our pets. The bread dough, when ingested, expands in the stomach because of the warm and moist environment. This can lead to a bloated or even twisted stomach. In addition yeast is often added to our baking products to help get bread to rise, and when this yeast is fermented it produces both carbon dioxide and alcohol. The alcohol produced can be absorbed into the bloodstream and causes dangerous drops in blood sugar, blood pressure and body temperature. Common clinical signs include vomiting or retching, distension of the stomach, weakness and collapse.

Macadamia nuts: Ingestion of these nuts are not proven to be fatal in dogs but can cause them to experience uncomfortable clinical sings, including fever, joint stiffness, vomiting, tremors and difficulty walking, especially in their hind legs. Often your pet will start to feel better after about 48 hours, but supportive veterinary care (such as pain medication) may help ease their discomfort.

Xylitol: The most common ingredient used in sugar-free gum is xylitol, which is a non-caloric sweetener. It is also found in some oral rinses, toothpastes and vitamins. Xylitol and dogs do not mix – it can cause a dangerous drop in blood sugars levels. Dogs will often display signs of disorientation, black tarry stool, tremors and seizures. If severe enough some dogs have developed liver failure. Keep your gum away from your canine companion.

Avocados: Avocados are not actually poisonous to dogs or cats but as many veterinarians can tell you the avocado pits can cause a foreign body obstruction. Avocados contain persin, which is actually toxic to the majority of pet birds. The abnormal clinical signs associated with avocado ingestion in birds include, respiratory distress, inability to perch, liver and kidney failure and sudden death.

Go forth and enjoy your favorite foods, but keep in mind which foods you should avoid sharing with your furry family members. Whenever in doubt, contact your veterinarian for healthy and safe food suggestions.

Q. Why does my dog keep licking her butt alot? We can’t take her to the vet. But, after the bath, she seem fine and not lick her butt alot.
ANSWER : A. I would ask the vet (or groomer who gives the bath) if they are expressing your dog’s anal glands during the bath. This is a very common thing for them to do and it would explain why your dog is so comfortable after a bath. It would also explain why your dog licks her bum so often! Dog’s have these bothersome glands that are located right next to their anus called anal glands. These glands fill up every week or two with fluid (in some cases, very thick fluid) and many dogs have a hard time expressing this fluid on their own. This causes them a great deal of discomfort and in turn causes them to lick their bum! Some dogs will even scoot their bum on the carpet in an effort to empty the glands. Your vet (or your groomer in this case) can help you and your dog out by emptying these glands out on a regular basis and keeping your dog comfortable.

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!