Experienced and professional animal trainer provide their insights in answering this question :
A. It could be a small hernia. You should ask your vet to check what this is when your puppy has her next vaccination .

How to Identify Common Pet Problems ?

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

Lipomas or fatty tumors

They are benign tumors that are just a mass of fat cells under normal skin. These are usually soft, round, and movable. They are commonly found around the ribs—though they can show up in other places on the body as well—on middle-aged to senior dogs who lean toward being overweight.

Fatty tumors, also known as lipomas, happen most often in middle-aged or older dogs, especially around the ribs, although they can show up anywhere. They`re considered a natural part of aging. Any breed can have them, but larger dogs and those who are overweight are more prone to them.
This is called an umbilical hernia. In affected puppies a small amount of the fat from inside the abdomen frequently protrudes from the opening, creating a bump under the skin at the site of the belly button.
A hygroma is a fluid-filled swelling surrounded by a thick capsule of fibrous tissue that develops under the skin. Hygromas are typically not painful.
They may advise you to keep a watchful eye on it and bring your pup in for a biopsy if the lump continues past three months, is more than an inch in diameter, or continues to grow or change shape.
Liver enlargement (hepatomegaly) can cause a firm, irregular mass below the right rib cage, or on the left side in the stomach area. Neuroblastoma, a cancerous tumor often found in the lower abdomen can cause a mass (this cancer mainly occurs in children and infants).
Chondrosarcoma in dogs most commonly affects the flat bones of the body, such as the ribs, skull, nasal cavity, and pelvis. Clinical signs may include localized swelling (which may be painful), decreased appetite, pain, and dehydration. Additional clinical signs may depend on the location of the tumor.
One of the best ways to identify a potentially cancerous lump is to evaluate how that tumor feels when touched. Compared to the soft, fatty characteristics of a lipoma, a cancerous lump will be harder and firm to the touch, appearing as a hard immovable lump on your dog.
Are they at risk? Unfortunately, some products that are classed as non-toxic may not be safe for pets. There is the risk that if dogs ingest too many bubbles, or accidentally drink the solution, they could end up with side effects like chemical burns in their mouths, upset stomachs, and other signs of gastric distress.
What Do Abscesses Look Like? A strange swelling or lump on your pet`s body may be an abscess. Abscesses may hide under your pet`s fur and be hard to spot. If the abscess bursts, you may see oozing pus on your furry friend`s body or smell a bad odor.
If the dog begins to lie on softer more pliant materials, the hygroma is likely to simply resolve over 2-3 weeks as the inflammatory tissue is able to scar down. It is best not to tap off the fluid as any time the hygroma is pierced, infection can be introduced, potentially creating a “complicated” hygroma.
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.
Histiocytomas are an abnormal growth of immune cells in the skin, and are often seen on young dogs. These masses can look angry, because of their bright red color and “bubbled” surface. They often appear overnight and sometimes will disappear without treatment.
A hard, immovable lump on your dog is a sign that you must book an appointment at the vet as soon as possible. If your dog is also suffering from any of the following symptoms, then it`s time to call the vet: The sudden appearance of lumps. Changes in size, colour, or texture.
Symptoms And Signs Of Cancer In Dogs

However, the following list identifies some of the most common signs of cancer in dogs: Lumps and bumps underneath a dog`s skin. Abnormal odors emanating from the mouth, ears, or any other part of the body. Abnormal discharge from the eyes, mouth, ears, or rectum.

Symptoms of Chest Wall Tumors

Pain or soreness. Swelling. Impaired movement or chest expansion. Protrusion as with a lump.

A rib hump is a common condition indicator as the unnatural curve pulls on the rib cage and disrupts its position. Let`s start our discussion of rib humps caused by scoliosis by first defining the condition itself.
As with many conditions, the causes are often multifactorial with environmental and genetic factors likely playing a role as risk factors. Lipomas are more common in senior dogs but can occur at any age.
What causes sudden lumps under dog skin? There are several reasons why your dog may develop bumps and lumps. It can be a benign growth, skin infection, allergic reaction, or something more serious like cancerous tumors. Consult with your vet to get an official diagnosis and treatment plan.
The chest wall includes the spine, sternum, and ribs. Many types of tumors can grow in this structure. Some are primary tumors, which originate in the chest wall; these can be either benign or malignant. Others are secondary tumors, which spread (metastasize) to the chest wall from another site in the body.
Fatty Tumor (Lipomas) in Dogs

Frequently seen in middle-aged and senior dogs, simple lipomas are painless, soft, and mobile lumps made up of fat cells. Although most often found on the on the abdomen and chest these lumpy masses can develop anywhere, just under the skin, on your dog`s body.

Contact Your Vet

If you`ve found a lump or bump on your pet, give us a call right away to make an appointment. Because the difference between a benign mass and something more serious isn`t always obvious, your veterinarian needs to take a look.

Common Skin Cancers in Dogs

These tumors appear as raised wart-like patches or lumps that are firm to the touch and are typically found on the dog`s head, abdomen, lower legs, and rear.

It is recommended that pet owners take note of pet lumps and bumps when first observed. If it is larger than a pea and sticks around for a month or more, it`s time to figure out what`s going on. While they can definitely be harmless, it`s a good idea to keep ahead of pet lumps and bumps.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Q. How do I get my dog to stop chewing on things? I kennel her when I leave for a few hours, but I can’t go to the mailbox without her eating something.
ANSWER : A. If she’s young, then this is just normal puppy behavior. Don’t worry about it. The thing about puppies is, they explore using their mouths. If your puppy grabs a coat hanger, or a slipper, you should roll up a newspaper, and smack yourself on the head with it for leaving those things out.. your puppy is going to explore things, that’s normal! It is 100% up to YOU to keep those things away from your puppy when your puppy is unsupervised… even for just a moment.

Remember to never scold your puppy for grabbing these things. They are just curious little cuties, and they don’t chew things up to bother us.. Dogs do not have intentional thought, so they aren’t ever doing anything ON PURPOSE to us.. The most important thing you can do when your puppy is chewing something you don’t want her to be chewing is TRADE her the inappropriate item with a toy of hers, so she understands “no honey, that isn’t what puppies chew on… THIS is what puppies chew on!” and then begin playing with her using her toy to show her that TOYS ARE FUN.. Way more fun than a boring ol’ coat hanger.

Another helpful thing you can do is have two bags of toys. In each bag is many different kinds of toys. Lots of chew toys, lots of soft squeaky toys, lots of rope-type toys, a bunch of balls.. All kinds of things! For one week you have bag#1’s toys out for your puppy to play with.. At the end of the one week, you collect those toys, and you bring out bag#2! The toys will be more interesting/feel like new to your puppy, which will in-turn, make her chew less inappropriate things. Her toys are too fun to care about that dumb Wii-mote that you left laying around.

Hope this helps!

Q. My puppy is urinating a lot. And the lady I gave one of the puppies to said she thinks her puppy has diabetes could my puppy have it to
ANSWER : A. It is not likely that either one of these puppies has diabetes. It is very uncommon for a puppy that young to have diabetes. If your puppy is straining to urinate or is urinating very small amounts frequently and cannot seem to wait for very long between urination, he may have a urinary tract infection. It is quite possible that your puppy is completely normal. I would suggest an exam with your veterinarian and discuss the behavior with them. They may suggest a urinalysis. Your puppy should be going to the vet at 3 week intervals for vaccinations at this age, so you can discuss it when he has his next set of vaccines. The other person with the other puppy should also be taking hers to a vet for proper immunizations and she should also discuss her concerns with her vet.

Q. Hi my puppy is 9 weeks old she has a small bubble just under her ribcage what can that be thank you sharon
ANSWER : A. It could be a small hernia. You should ask your vet to check what this is when your puppy has her next vaccination .

Read Full Q/A … : Causes of Blood in Dog Stool

Q. What solid food should I start 4 week old Pit Bull puppies on?
ANSWER : A. A puppy food designed for large breed puppies can help with rapidly growing bones and joints and can be given in a wet form easily to puppies learning to eat solids. You can also provide a dry kibble for them to try and should moisten it with water or some formula to make it easier for the puppies to eat and digest. As the puppies grow and their teeth come in, they will begin to eat and explore more of the solid food on their own.

Mom should also be on a Puppy formula while nursing her puppies as it will provide extra nutrients to both her and babies while they are in a very rapid stage of growth!

Q. I just got a female Pug she is only 4 weeks old due to someone stole he mom while she was outside. I am giving puppy replacement milk please any advi?
ANSWER : A. Oh what a sad story. It is good that you are feeding a puppy replacement milk, follow the instructions on the package for amounts at corresponding age. Keep an eye on its weight too preferably daily and if it isn’t putting on weight or seems unwell have it checked by your vet. You can start introducing a puppy food in the next week or so and by 8 weeks it should be totally weaned onto puppy food. It will need vet check soon and start it’s vaccines at 6-8 weeks depending on the vaccine your vet uses.

Q. I have 8 week old mini Poodles, I wanted to start them out on grain free and to use Innova grain free Natures Table, is this okay?
ANSWER : A. If the food is formulated for puppies, then it should be find to give. There should be an AAFCO statement that states “for growth” or “for all stages of life” to indicate that it is OK to feed puppies during growth. If your puppies are currently on another food, be sure to gradually switch them over a period of about a week to prevent digestive upset. (Starting with a few days of 25new/75 old, then 50/50, then 75/new/25 old before finally all new food) If your puppies are starting on solid food, then moistening larger kibbles can help make it easier for them to eat.

Read Full Q/A … : Dog Feeding Tips

Q. My puppy ate 2 peanut butter with chocolate chip granola bars.
ANSWER : A. It is important to know your pup’s weight, age, and breed. It takes a decent amount of milk chocolate to cause any issues in a dog. However, if it was dark chocolate, and your dog is very small (2lb small breed) then you should consider going to the vet. If your dog is a little larger, I wouldn’t worry about it too much. Keep a very close eye on your puppy for the next couple of days, and check each bowel movement.

I am hoping you didn’t scold your dog for eating the granola bars. I say this because you may have, when truly, it was your own fault. Allowing your puppy to get into trouble like that is irresponsible. A puppy should be crate trained, and crated when unsupervised. Not only that, but if your puppy had already eaten the granola bars, scolding is pointless. Scolding after the fact is always pointless. If you’re going to scold, or redirect your puppy, you should do is DURING the act, and not after. The puppy will only learn that you are scary, and unpredictable if you scold after he has done something bad and forgotten about it.

Q. Hi I just bought a German shepherd who is almost 3 months old, h has gotten his 1st puppy shots from his previous owner, what other shots does he need
ANSWER : A. Puppies should be given 3 rounds of vaccinations, ideally at 8, 12, and 16 weeks. Typically the vaccination against distemper and parvo (that’s one vaccination against 2 diseases) is given at all 3 visits. Rabies is given only once when they are 16 weeks old.

Depending on where you live and your puppy’s lifestyle, your vet may also recommend a vaccination against leptosporosis (given at 12 and 16 weeks) and against kennel cough (it varies, but they are usually given two of those as well).

Read Full Q/A … : Aggressive Puppy