Get

In Your Inbox

Dogster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

What Are Guard Hairs on Dogs? Vet Approved Facts & FAQ

Share

Border collie on couch with dog hair fur

While you may think that all of your dog’s hairs are the same, dogs actually have multiple types of hair, and all of their hair is vastly different from the hair growing out of your head. One type of hair that dogs have is the “guard hairs.” These hairs are among the most important considerations made when it comes to grooming dogs, especially when a pet parent wants to shave their dog for the summer.

divider dog paws 4 oct 2024What Are Guard Hairs?

Merriam-Webster Dictionary defines “guard hairs” as “long, coarse hairs forming a protective coating over the undercoat of a mammal.” Essentially, the hairs that you like to pet and fluff when your dog comes over for cuddles are their guard hairs.

hand holding the brush while getting the dog's hair
Image By: sonsart, Shutterstock

What Do Guard Hairs Do?

According to the Britannica encyclopedia, the guard hairs protect the more delicate undercoat and skin from abrasions and, in many cases, moisture. Not all dogs have an undercoat. Short-haired dogs, such as Boxers, are “single-coated” and have only guard hairs, though they are considerably shorter than what one might imagine guard hairs to look like.

The guard hairs differ from the ground hairs—those that make up the undercoat—in quality, texture, and function. The undercoat’s hairs are designed to help regulate the animal’s body temperature. They tend to be finer, softer, and shorter. The guard hairs are longer, coarser, and are designed to protect the body against the elements.

What Happens If the Guard Hairs Are Shaved?

When shaving your dog, you don’t get to pick and choose what you keep. Everything in the clippers’ path will be removed, including guard and ground hairs, depending on the height of the blades.

Shaving either the guard or ground hairs can have devastating effects on your dog’s health. If your dog is double-coated, like German Shepherds or Saint Bernards, shaving them will let them without insulation making the dog susceptible to heat stroke, sunburn, and damage from the elements. Shaving can result in improper hair growth, follicle damage, and permanent changes in the coat’s texture.

Guard hairs are critical for dogs to protect themselves against things like minor cuts and scrapes that would be avoided entirely if the guard hairs had not been removed. Additionally, when shaving the guard hairs, you run the risk of shaving off your dog’s undercoat, which can impact their ability to regulate their body temperature.

Dog hairclip
Image By: David Herraez Calzada,Shutterstock

Will Shaving the Guard Hairs Help My Dog in the Summer?

Short answer, no. Shaving your dog’s hair will not help them regulate their body temperature and keep cool during the summer. More often than not, dog parents who shave their dogs in the summer just end up shaving off the undercoat, which is critical to your dog’s ability to self-regulate body temperature.

The ground hairs insulate the body to keep it at a particular temperature, and shaving those hairs away will actually put your dog at an increased risk of heatstroke in the summer or hypothermia in the winter.

It’s natural to want to do everything you can to improve your dog’s daily life, but shaving them isn’t something you should do, even in the summer. Guard hairs are an important part of your dog’s continued well-being. So, leaving them where they are is the best course of action. Of course, if your dog has hair that grows continuously, you may need to get them trimmed now and again, but shaving should only be done with the oversight of a veterinarian or professional groomer to make sure that your dog will be safe from the elements after you shave them.

If you have any concerns about your dog or their health, we recommend you contact your vet directly.

If you need to speak with a vet but can't get to one, head over to PangoVet. It's our online service where you can talk to a vet online and get the advice you need for your dog — all at an affordable price!

PangoVet_Mention-in-Content Savings V1

divider dog paws 4 oct 2024Final Thoughts

Guard hairs are just one way that dogs have evolved to suit their environments. They’re a crucial part of your dog’s body, and you should take good care of them so your dog is happy and healthy! Learning everything you can about how your dog interacts with the world can help you become a better dog owner. Your dog undoubtedly thanks you for your diligence and understanding.


Featured Image Credit: Julia Zavalishina, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything dog

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.




How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Dogster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


Talk With A Vet Online

Peace of mind,
anywhere, anytime

Affordable vet advice

Why Is My Dog So Protective of Me? 4 Vet-Reviewed Common Reasons

Dogs can be extremely protective of their owners, and some people might even get a particular breed for this reason. If you’ve noticed...

When Can You Give a Puppy A Bath? Vet-Approved Risks & Cleaning Tips

If you’ve ever cared for newborn puppies, you’ll know how dirty they can get. Thankfully, mother dogs are generally great at keeping their...

How Do Dogs Show Affection? 10 Vet-Reviewed Ways

Dogs are renowned for their boundless love and loyalty; humans throughout time have found love and companionship with canines of all spots and...

What Can I Give My Dog for Pain Relief at Home? 8 Vet-Recommended Options

It’s never nice knowing, or suspecting, that your dog is in pain. To make things harder, they can’t tell us why they are...

More related

Lhasa Apso vs Shih Tzu: The Differences (With Pictures)

When it comes to small breeds, the Lhasa Apso and Shih Tzu are popular choices. Both breeds are affectionate, have the same type...

How to Trim a Goldendoodle’s Face: 10 Vet-Approved Tips

Goldendoodles make amazing pets and even better family members. While you may want to spend all your time playing and interacting with these...

Why Is My Dog Suddenly Anxious? 9 Vet-Verified Reasons & Solutions

Dogs tend to be happy-go-lucky creatures who live without a care in the world, so few things are more disconcerting than when your...

10 Best Dog Training Affiliate Programs: Reviews & Top Picks 2026

Aspiring affiliate marketers should consider dipping their toes into the world of pet care if they haven’t already. The pet industry is a...

Keep reading

Purina Pro Plan vs. Kirkland Dog Food: Pros, Cons & What to Choose

Trying to choose the right dog food can be an overwhelming experience. Comparing ingredient lists, calories, nutrition tables, and flavors seems like a never-ending, confusing battle. You want to give your dog the best food possible, but it’s difficult to...

Dogster_Dog Food Purina Pro Plan VS Kirkland

Can Dogs Eat Meatloaf? Vet-Verified Facts & Healthy Diet Tips

Meatloaf is a household staple in the United States. You can prepare this ground meat mixture in several ways that are delicious and satisfying. It’s loaded with protein, easy to make, and smells heavenly when you pull it from the...

Can Dogs Eat Meatloaf

10 Best Dry Puppy Foods in 2026 – Reviews & Top Picks

Finding the right puppy food is key to your newest family addition growing big and strong. With so many options available, it’s hard to choose the right one. In an attempt to help you provide your pup with the best...

a Maltipoo puppy eats from a metal bowl

9 Cranberry Dog Treats Recipes to Make for Your Pup

Check with a veterinarian before adding any new foods to your pet’s diet, particularly if your pet has any underlying health conditions or is on a special diet. If you love baked goods and making all sorts of yummy snacks...

cranberry dog cookie treats

10 Best Dog Foods in the UK in 2026 – Reviews & Top Picks

Gone are the days of limited dog food choices. As owners have become more attuned to canine nutritional requirements and have access to a wealth of information on ingredients, both good and bad, the range of dog food has expanded...

shih tzu dog getting wet food from owner at kitchen

Can Dogs Have Scallops? Vet-Verified Nutrition Facts & FAQ

Learning that 95% of people consider their pets family members is not all that surprising these days. We open our homes to our dogs, share our vacations with them, and even let them sleep in our beds. We even slip...

Dogster-Can-Dogs-Have-Scallops

SquarePet Dog Food Review 2026: Recalls, Pros & Cons

Review Summary SquarePet dog food is produced and sold by a small, family-owned American company. The recipes are all manufactured exclusively at the company’s plant in Minnesota. SquarePet is known for its focus on simple recipes and developing non-prescription specialty...

Dogster_SquarePet Dog Food Review

Can Dogs Eat Cat Food? Vet-Verified Info & Safety Tips

When you live in a multi-pet household with dogs and cats, you’re probably used to having to keep your pets from eating each other’s food. Dogs and cats can eat many of the same foods, and a lot of the...

Can Dogs Eat Cat Food

Love Dogs? So Do We! Join the Dogster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Dogster Email Newsletter