Male dogs have between eight and ten nipples, although others have more and some fewer nipples. The dog nipples of male and female appear identical.

A nursing mother has more defined nipples than a female without a small dog or a male dog, but usually, nipples are thin, rounded points, which emerge on a line from the sheath of her dog.

Nipples of your dog may be pigmented; all are considered natural. You should call the doctor if either of the dog’s nipples seems substantially bigger than some or appears to be irregular.

Do All Male Mammals Have Nipples?

You already know that male’s dogs have nipples. Now, you probably ask, “why it exist”. After all, they have no reason, so why do all male mammals have them?

Most females, like people, have nipples. Scientists agree that it is natural genetic selection.

Male and female mammals commence life in utero, with nipples nearly similar. Nipples are practically the default mammalian type, and even though they do not function in males, they often face minimal issues.

A male dog without nipples has no underlying benefit over a male dog with nipples, which implies that they were not chosen because they were more or less innocuous. The remains of pelvic bones present in whales are identical.

Whales have no legs any more. However, because of the remaining shape, the whales have held them, although they do not serve specific function anymore.

Black Spots On Male Dog Nipples

Something is indeed confusing when you scratch the belly of your dog and find a black spot. It’s usually more like your first response, “ew, a tick! Get the tweezers! Get the tweezers!

But sometimes what you think was a tick is a nipple. It can also be a skin tag under development.

Too many skin tag will give your dog discomfort and even hurt it. So, you certainly want to make sure you have a tissue on your hands. In certain respects, you can differentiate between a nipple and black spots skin tag.

The best way to determine if it is a tick is to check for its legs.  A tick may look like a nipple, but the nipples never have their “legs”. You may even search the lump basis.

If it smoothly appears under the neck, it is possibly a growth nipple. It’s usually a tick whether one end seems like it’s buried or trapped. Check the other nipples of your puppy, too. It possibly appears like nipples too.

Why Does My Dog Have 9 Nipples

The nipples on a male dog are in the same location as on a female dog. They run pair by pair in two lines down the abdomen. The nipples are somewhat similar, regardless of whether the dog is a neutered male, an intact male, or an intact female.

The amount of nipples depends on the height of the puppy. A bigger breed dog might have ten nipples. A smaller dog may have eight nipples. However, those pets can have more or fewer.

Still, there are a variety of variations between female nipples from male nipples. That is why having nine nipples is still considered normal.

Why Doesn’t My Male Dog Have Nipples

Often, the nipples exist in unexpected positions and not straight over. Dog’s wooly coat can make it difficult to see. Because male dog nipples are often ignored, it can easily be overlooked. And usually, the nipples do not provide you with much from a visual point of view.

And here is a curious fact about dog nipples…

They can be identified in odd locations, such as the legs of your dog.

Why will a nipple grow? There are lines sometimes followed by nipples during placenta growth.

The lines usually run from arms to the bottom. These lines illustrate why nipples are on the body of a dog, but there is also one that grows in an odd location.

If you notice a fleshy bump in the leg of your dog (or some other strange spot), look the opposite leg. If you find the same, it’s usually a nipple. If not, ask your veterinarian to inspect the pothole only if it is serious.

Do Nipples Ever Give Male Dogs Problems?

Nipples in male dogs are typically innocuous. The Mammary Gland Tumors most commonly arise in normal females.

In rare case, male dogs may be affected. It would be best if you asked the doctor whether the dog’s breast looks like there’s a lump under it or whether there are odd shifts throughout the look.

In a particular case, what you assume is a nipple may be something different, like a tumor. Any skin tumors are safe, like skin marks, whereas others may be cancerous. If you are aware that your dog’s nipple is more than a nipple, schedule your veterinarian’s consultation.

In general, nipples won’t give the male dog any trouble. They are worthless and harmless. But that doesn’t imply you should disregard them.

Check the nipples of your dog. Any nipples development may be purely friendly, but others may be more sinister.

  • The Size Growth
  • Change in Color
  • Not Actually a Nipple
  • Mastitis

The Size Growth

Changes in the nipples of your dogs can be of interest. Extensive nipples may be a testicular cancer sign. Testicular cancer can affect both intact and neutered male dogs.

Although in intact dogs, it happens much more likely. You can check for several common signs if your dog has swollen nipples such as swelling in the belly, symmetrical hair loss, abdominal discomfort, and anaemia.

You can also call your doctor as soon as possible even though you find none of these other symptoms. When your dog is afflicted with testicular cancer, two care options may be available.

While it is intact, any cancer may be eliminated by neutering. When the dog is neutered, it will need to be handled with chemotherapy. Testicular cancer, though, is also not severe and does not spread to other regions. It means that the prognosis is excellent in most situations.

Change in Color

It is normal for the nipples of your dog to change color with time. In certain instances, this is just a symptom of age.

The nipples of both men and women will alter color when they grow older. A color shift in a younger female dog may be a sign of mastitis, but male dogs can’t get it.

Not Actually a Nipple

Most owners fear when they see or sense something strange. Often, a nipple may misinterpret with the tick. Most of us happened, but it’s nothing even to feel guilty for.

When you’re not sure if it’s a nipple or maybe a tick, look at it. If the lump is wholly connected to the body of your puppy, it’s a mark or mole or scab. If it seems as if it is partly embedded in his body, it’s possibly more than a skin tag.


Mastitis found mostly in female dogs that had a puppy or who was in heat. (Basically, towards the end of their heat a female dog is behaving like kittens, swollen her mammalian glands. She will even do stuff like defend her toys as if they were her kittens.)

It is not limited to intact females, though. Mastitis may even occur with spreading females and also male dogs.

Because of inadequate sanitary conditions, childhood trauma and systemic infection, mastitis may occur. Infection symptoms show enlarged mammalian glands that may or may not go pus, and the dog looks lethargic and may not eat.
When you think your dog has mastitis, he or she has to head to the doctor immediately. Mastitis can escalate to septic shock when left untreated and kill your dog.

When the doctor agrees that mastitis is the condition, the doctor usually prescribes antibiotics. If the mammalian gland is abscessed or not spared, it must be extracted by surgery.

Affected puppies can also need medication if they are malnourished and dehydrated. However, you are lucky: mastitis in dogs is easy to handle if caught early. Many of them heal completely.

Do All Mammals Have Nipples?

The function of the nipple is to give milk to the baby of the mammal, produced by the female in her mammary gland. All mammals instinctively seek these newborn nipples.

They are usually formed from the embryonic stage, in which the sex that it will have has not even formed yet, they develop in the so-called milk line, two parallel lines that extend from the upper limbs to the lower ones. In the case of humans, they range from the armpits to the pubis.

Mammals generally have an even number of nipples located in parallel, and usually, the number of teats means the maximum litter of that species, and half means ordinary. In other words, humans, we have two nipples, we don’t usually have more than two children (twins), and the usual thing is one.

But not all mammals are the same when it comes to nipples. For example, cats have six nipples, dogs between eight and 10, mice 10, cows four, elephants and primates two, and those with the most are pigs with 16, always in even numbers.

In the case of monotremes, which are those that lay eggs. Unlike what happens in placentals and marsupials, the mammary glands of monotremes empty milk through the skin, without nipples.

The cetaceans, such as the whales and dolphins do have nipples. However, as the little one does not have lips formed to suck, it is the mother who pours the milk thanks to special muscles. The baby takes the nipple with its mouth, and the mother delivers the milk into baby’s mouth.

A rare case in humans is that there is a so-called third nipple. Although most of us have two nipples at birth, human fetuses develop several nipples along the milk lines, which usually disappear. But in 1 out of 18 cases, one of them develops. It can be one or more, but usually, they hardly look like moles.

Final Thoughts

The titles of ‘mammals’ given because of the presence of nipples. It is an ecological adaptation that helps to sustain the offspring. However, in most species, women are the only ones who breastfeed their little one. This is because of the nature of divergent genetic preferences of the sexes.

In most mammals, female face the bulk of fertility costs ( e.g. gestation). The explanation of why male dogs have nipples goes back to their womb period. If a puppy turns out to be a male or a female, both embryos tend to sound androgynous. Nipples evolve in utero during the early stages before gender is known.

When gender is formed, reproductive organs mature according to embryo sex, but they are already in tow. This explains why males have no usable breasts with certain exceptions.