Experienced and professional animal trainer provide their insights in answering this question :
A. You should see a vet to check what is it. It can be a rash, allergic reaction, infection, pustules… Dermatological diseases often look very similar so careful exam is necessary to make a diagnosis

How to Identify Common Pet Problems ?

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

Lipomas (fatty lumps)

Lipomas are the most common benign mass dogs can get; they`re often found under the skin of older dogs, and are more common in obese dogs. They tend to be round, soft tumours of fat cells that grow very slowly and rarely spread, so it can take up to six months before you see any change.

Officially Called an “Occiput”

This bony protuberance has an actual name: an “occiput.” It is a natural part of a dog`s anatomy and is there for a couple of reasons. Its primary purpose is to protect the bones of the dog`s skull and, in turn, his brain.

Histiocytomas: These small, hard and dome shaped benign growths often appear in younger dogs on their head, ear flaps or legs. They can often disappear, even without treatment.
A small bump on a dog can something caught in the hair, a tick, insect bite, scab, puncture, blister, abscess, cyst, pimple to a small benign mass, or a malignant tumor. Lumps can appear in different sizes, shapes, and even colors.
The most common treatment for canine acne is topical benzoyl peroxide. This product helps to flush out the hair follicle and reduce bacterial contamination.
Cysts can look and feel different, depending on the type. They are typically slow-growing, smooth, raised bumps on or under the skin. Sometimes they ooze a discharge, and over time they can ulcerate and change shade. They are usually colored white, blue, or a dark hue.
In addition, each human skull has a natural bump on the back of the head. This bump, called an inion, marks the bottom of the skull where it attaches to the neck muscle.
Dogs with multilobular tumors of bone often present with a non-painful, often well-defined bony mass on the skull. Histories may reveal a long course and a relatively slow, asymptomatic growth. When the tumor occurs near the TMJ (temperomandibular joint), pain can be associated with opening the jaw.
Unless you`re sure about the cause of a lump or bump, bring your dog in for an exam. If you see fast growth, redness, swelling, pus, an opening, or if the dog is in pain, make that appointment even sooner.
Skin squamous cell carcinoma is the most commonly diagnosed form of skin cancer in dogs. These tumors appear as raised wart-like patches or lumps that are firm to the touch and are most often found on the dog`s head, lower legs, rear, and abdomen.
The most common types of lumps or bumps found on puppies are warts, skin tags, button tumors, and abscesses. In these cases, your vet may recommend a wart ointment or other skin treatment. There are also some products that claim to help dissolve normal fatty skin lumps on dogs.
Dog Cyst vs Tumor: How Do I Tell The Difference? Cysts are fluid-filled sacs under the skin that are usually easy to move around, while tumors are typically more solid. A cyst also may drain a white, yellow, or green discharge.
Eczema and seborrhea—two skin conditions often seen in humans—are also seen in the bully breeds. Eczema is characterized by itchy, dry patches of red or flaky skin, whereas seborrhea (a dysfunction of the glands that provide moisturizing oil to the skin) can result in either excessively dry or excessively oily skin.
Any new lump or bump should be evaluated by your veterinarian. There are several breeds that are at a higher risk of developing mast cell tumors in their lifetime, including Boxers, Bulldogs, Pit Bulls, Pugs and Boston Terriers, but dogs of any breed can be diagnosed with a mast cell tumor.
Dogs can get cysts that will become inflamed and rupture. It would be a good idea to have the area examined by your veterinarian so they can assess for infection and provide antibiotics and anti-inflammatories if needed. They may also recommend having the growth removed once it has healed some.
Warts on dogs often look like a small head of cauliflower, but other, rarer types do exist, including an inverted papilloma (usually a firm lump with a dot in the middle) and dark, scaly plaques of skin that have an irregular surface.
A bump on the back of the head has many possible causes, including injuries, cysts, fatty growths, inflamed hair follicles, and bone spurs. Bumps on this part of the body can be hard or soft, and they can vary in size. Injuries are a common cause of bumps and lumps on the back of the head.
Cancerous head lumps are usually hard and painless to the touch. In many cases, the mass appears spontaneously, then steadily grows in size.
Most people have slight bumps and ridges in their skull, and some are born with a dent in the head. But a new dent or hollow may be due to a trauma or health condition, such as Gorham`s disease. However, a dent in the head, especially if it is new, requires a trip to the doctor to determine the cause.
Osteomas are benign outgrowths of bone found mainly on the bones of the skull. These tumors are slow growing and usually cause no symptoms.
Signs of a serious head injury. Seek immediate medical attention if, after a knock to the head, you notice any of these symptoms in either you or your child: unconsciousness, either briefly or for a longer period of time. difficulty staying awake or still being sleepy several hours after the injury.
There are two major types of lumps and bumps on dogs: malignant (cancerous) and benign (not cancerous). However, you can`t tell the type or severity of a growth just by looking at it. A veterinarian can take a sample of cells to give you a diagnosis and appropriate treatment plan.
Histiocytoma tumors are often referred to as button tumors because they are usually less than an inch in size, red, raised, and hairless. Often seen in English Bulldogs, Scottish Terriers, Greyhounds, Boxers, Boston Terriers, and Chinese Shar-Peis these tumors typically regress on their own within two to three months.
We must sample lumps, and evaluate the cells under a microscope to determine what they are. There is no other way to know whether a lump is benign or malignant. Your veterinarian must perform a fine needle aspirate and/or a biopsy to make an accurate diagnosis.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Q. I have discovered some small knots on my American Pit Bulls back, side, and head the past few days. What do you think that this is?
ANSWER : A. You should see a vet to check what is it. It can be a rash, allergic reaction, infection, pustules… Dermatological diseases often look very similar so careful exam is necessary to make a diagnosis

Q. Have a dachshund who is over weight but this past couple of days she refuses to go up steps and her left back leg is not being used, and she is guntin
ANSWER : A. This particular breed is very susceptible to back problems. Your dog is showing some classic symptoms of back pain- reluctance to climb stairs, weakness or inability to use a rear leg and grunting. Your dog should be examined and have radiographs of her back as soon as possible. Hopefully, she can be treated medically, but sometimes back problems progress quickly to something surgical. The quicker you get an accurate assessment of the extent of her problem, the quicker you dan get her some pain relief.

Read Full Q/A … : Theories of gravitation

Q. 3 yr old mastiff Rhodesian ridgeback mix has suddon symptoms. Unsteady walking wants to sit. One side of rib cage seems tender. Was in kennel all day
ANSWER : A. A dog should only be left in a kennel for no more than 6 hours. It is very hard on a dog to sit in a cage and do nothing all day. I would highly suggest taking him to a dog day care. Mastiffs require a lot of attention and exercise so I think dog day care would be a perfect fit for him if you’re busy all day. I would recommend visiting your regular veterinarian and seeing if there is some sort of injury.

Q. We just adopted a Lab puppy who seems to be hungry all the time. She is usually awake by 4:30 am. Wondering on when and how much to feed her?
ANSWER : A. It depends on the food you feed her. Read the back of the bag of food, whatever it says on the back under “amount for puppy”, decrease that by a very small amount. Often kibble bags encourage overeating to sell more product.

You should be feeding the puppy at three set times throughout the day. A nice and early breakfast, lunch, and dinner. Make sure you aren’t feeding too close to bedtime. Give the puppy an hour after eating before bed in case she has to eliminate outdoors again before bed.

I’m wondering if maybe she’s just waking up at 4:30am to be taken outside to eliminate. Puppies can typically only hold their bladders 1 hour per month of age, plus 1.. and that’s typically pushing it until after 6mo of age. Have you tried just bringing the puppy outdoors, and then luring her back into her crate with a high value treat? See if she’ll go back to sleep.

Q. I currently feed my 2 year 31 lb Beagle 1 1/2 cups of Eukanuba a day. I was thinking of changing his food, can you recommend something?
ANSWER : A. If you are looking for a higher end food to feed your Beagle, there are many available now in commercial pet stores. Many brands such as Blue Buffalo, Nutro Natural Choice and others offer holistic foods that tend to be more meat based than carbohydrate based. Some brands such as Royal Canin also offer foods that are specific to certain breeds. This means the products tend to have more digestible ingredients in them rather than fillers. They may also avoid some allergenic ingredients such as corn, wheat and soy products which can cause digestive issues in some dogs. However, Eukanuba, Science Diet and others are a good mid-grade brand and many dogs do very well on it.

If you do decide to switch your dog’s food, it should be done so gradually to avoid digestive upset. A routine of 9 days is best for switching over. This involves 3 days of 25% new/75% old, 3 days of 50/50 and 3 days of 25%old/75% new before finally feeding only the new food. Also be advised that depending on the ingredient changes, foods that have different grains or fewer grains in them may slightly change the consistency and size of your dog’s stool.

Q. ON MY SMALL DOGS STOMACH BY EACH LEG THERE ARE SMALL KNOTS AND SOMETIMES THE FILL AND BECOME PRETTY LARGE THEN THEY RETURN BACK VERY SMALL KNOTS WHAT
ANSWER : A. These may be lymph nodes you’re describing, which will swell and recede along with inflammation or infection somewhere in the body, usually in the general area of the nodes. I recommend getting your dog in to see you vet to have these examined.

Q. I have 3 shihtzus 2 have diarrhea seem fine otherwise I did change there diets in the last 3 days for all. They eat imams canned food twice daily now
ANSWER : A. Some dogs have more sensitive stomachs than others so a change in diet may have been enough to cause it. Did you introduce the new food gradually? We normally recommend doing it over 7-10 days (a quarter of new food with 3quarters of the old food for a few days, then half and half for a few days etc). Was there a reason for changing their diet? If they were fine on the original food then stick to that. If the diarrhea doesn’t clear up in a few days then get some pro biotic paste from your vet.

Read Full Q/A … : Kibbles 'n Bits Dog Food

Q. I’m fostering some now motherless 5 week old Pitbull puppies. There are 5 of them. How much do I feed them? I give them blue buffalo puppy food by wa
ANSWER : A. It should say on the Blue Buffalo on the back under, “puppies” or some sort of age chart. Make sure it’s puppy food.. puppies need extra protein and nutrients. http://bluebuffalo.com/product-finder/dog/?facets=Puppy,Dog_DryFood#

http://www.bullytree.com/wp-content/uploads/2013/08/Feeding-Chart-Blue-Buffalo.gif – On the back of a puppy-food bag from Blue Buffalo it says underneath 3-5 months, “3 to 20 lbs: feed 1/3 – 1 1/4 cups per day” and “21 to 50 lbs: feed 1 1/2 – 3 cups per day.” Make sure you are breaking that up into at least three meals. Let’s say you decide to feed them 1 1/2 cups per day each, then, you should measure that out, and set it aside. Throughout the day, you should offer at least three mealtimes with that set-aside amount. You want to start with the least amount, and then if they seem hungry (licking the floors, begging you constantly for food, whining/crying) feed them a little more until you get it right. Do not overfeed, and try to avoid underfeeding a well.