What is the extra skin on a dog?

You're likely referring to dewlaps, which are the folds of loose skin that hang from the throat of some dog breeds.

Here's a breakdown:

* Dewlaps: These folds of skin can be found on the throat, chest, or belly of certain breeds, like bulldogs, mastiffs, and bloodhounds. They're typically more prominent in males.

* Function: The purpose of dewlaps is not entirely clear. Some theories suggest they help with:

* Cooling: Dewlaps may increase surface area for heat dissipation.

* Protection: They could act as a cushion during fights or protect the neck from bites.

* Communication: The folds might play a role in visual communication, enhancing a dog's appearance and expressions.

* Care: Dewlaps can be prone to:

* Skin infections: The folds trap moisture, creating a breeding ground for bacteria and yeast.

* Irritations: Frequent rubbing or contact with rough surfaces can cause irritation and inflammation.

Important Note: Dewlaps are a normal feature in certain breeds. However, if you notice any redness, swelling, or discharge in your dog's dewlaps, consult a veterinarian. They can diagnose and treat any potential skin issues.