Do Dogs Have Armpits?

Dogs do have armpits. The armpits are located at the top of the forelegs where they meet the thorax. Unlike humans, dogs don’t have a hollowed-out armpit (fossa) and there are no sweat glands. Canine armpits contain lymph nodes known as axillary lymph nodes as well as the axillary artery and vein.

Do dogs have armpits?

What is the purpose of a dog armpit?

The canine armpit is a gateway that connects the upper limb to the thorax and allows the passage of muscles, blood vessels and nerves.

If dogs have armpits, do they have arms?

Dogs are quadrupeds, which means they walk on all four limbs. To the front of the dog are the forelimbs, also known as thoracic limbs, which contain 45 bones, making up the upper limb, lower limb, elbow, wrist and digital bones. The hind limb has 96 bones including the femur, patella (kneecap), fabellae, tibia, fibula, tarsus and metatarsus and digital bones.

Armpit injuries in dogs

It is not uncommon for cats to partially wriggle out of collars that become trapped between the neck and the armpit leading to injury. This type of injury doesn’t typically occur in dogs.

Puppy pyoderma is a bacterial (or less commonly fungal) skin infection that typically affects areas with less hair such as the armpit, belly and groin. The most common symptom of puppy pyoderma is raised, red papules or pustules on the affected skin. Most cases of puppy pyoderma are mild and self-limiting and are not contagious to other pets.

The armpit contains bean-shaped lymph nodes that can swell if there is an infection. You may notice your dog’s veterinarian checking the armpit area during a physical examination. This is to evaluate the lymph nodes.

Lipomas are slow-growing benign fatty masses that can develop just beneath the skin of the armpit as well as other areas. While generally harmless, they can restrict movement if they become large enough. If you notice any bumps that have been present for longer than two weeks, seek veterinary attention.