Quick Answer: You can safely remove mats from your dog's hair without cutting them out by working from the tip of the mat toward the base, holding the hair close to the skin so you're not pulling on the roots, using a detangling spray or diluted conditioner, and finishing with a dematting comb or your fingers. Severe mats pressed flat against the skin should be shaved out β forcing them causes brush burn and pain. Dogs with chronic recurring mats despite regular grooming almost always have an underlying skin or coat health issue; mat frequency is a visible symptom of what's happening on the inside.
Matted hair isn't just an appearance problem. Mats trap moisture, dirt, and skin cells against the skin, creating the perfect environment for yeast and bacterial overgrowth. They pull on the skin every time your dog moves β a bad mat has the same effect as a tight rubber band left on for weeks. Underneath a serious mat you often find raw, inflamed skin, hotspots, and in severe cases, open sores. Preventing and treating mats correctly is a welfare issue, not a cosmetic one.
This is a complete guide to dematting a dog the painless way β the tools to use, the step-by-step technique, which breeds mat the most, how to prevent recurrence, and why some dogs mat constantly despite daily brushing (the answer is usually not in your grooming routine). I'm LΓ‘szlΓ³, founder of RUBOLD. Our bichon frisΓ©, Luna, has one of the most mat-prone coat types in the dog world, and keeping her coat tangle-free has taught me a lot about what actually works.
Important: If the mat is tight against the skin, the skin underneath is red and inflamed, or your dog yelps when touched, do not continue dematting at home. Shave the mat out with clippers (or have a groomer or vet do it) and treat the underlying skin.
1. What causes dog hair to mat?
A mat is tangled hair that has looped around itself so tightly it forms a solid clump. Three things cause them:
Friction. Hair that gets rubbed repeatedly (collar area, under the armpits, between the back legs, behind the ears where ear leather moves) tangles faster than hair that lies still.
Moisture plus movement. A dog that gets wet β in the rain, after a bath, swimming, licking itself β and then moves around before being brushed will mat within hours. Water makes the hair swell, movement interlocks the swollen fibers, and once it dries the lock is set.
Dead undercoat. Double-coat and curly-coat breeds shed into their own coat rather than onto the floor. The dead undercoat gets caught in the live topcoat and forms the foundation for every mat that follows. If you only brush the top layer and never the undercoat, you build mats from the inside out.
On top of these mechanical causes, coat quality matters. A dog with a strong, healthy coat sheds dead hair cleanly, has intact cuticles that resist tangling, and recovers quickly from being wet. A dog with poor coat quality β brittle, dry, thinning, with persistent dandruff β mats regardless of how often you brush. That's the signal most owners miss.
2. Which breeds mat the most?
Not every dog is prone to matting. Short-coat breeds (Labrador, French Bulldog, Beagle, Dalmatian, Boxer, Rottweiler, Dobermann, Basset Hound) almost never mat. The hair is too short to tangle.
Breeds that mat frequently:
- Curly or wool coats β Poodle (all sizes), Bichon Frise, Portuguese Water Dog, Doodle crosses (Labradoodle, Goldendoodle, Cavapoo, Bernedoodle), Bedlington Terrier, Spanish Water Dog
- Long silky coats β Yorkshire Terrier (long coat), Maltese, Shih Tzu, Lhasa Apso, Tibetan Terrier, Afghan Hound
- Dense double coats during shedding β Golden Retriever, Collie, Bernese Mountain Dog, Shetland Sheepdog, Newfoundland, Chow Chow, Alaskan Malamute, Akita, Spitz breeds
- Feathering areas on sporting breeds β Cocker Spaniel ears, Setter leg feathering, Golden Retriever pants
- Corded coats if not maintained properly β Puli, Komondor, Bergamasco Shepherd
If you have one of these breeds and you're asking how to remove mats, you're going to be asking again next month unless the underlying grooming frequency changes. Curly coats need daily brushing. Silky coats need daily brushing. Double coats need thorough undercoat work 2-3 times a week, daily during spring and autumn shedding.
3. The tools that actually work for dematting
You don't need expensive equipment. You do need the right tools used correctly.
For prevention and routine brushing
Slicker brush β fine bent-wire bristles on a flat pad. Lifts loose hair out of the coat. Good for all medium and long coats. The one tool nearly everyone should own.
Metal greyhound comb β a straight comb with a dense end and a wider end. The gold-standard mat-finder. Pull the comb through the coat; if it won't glide, you have a mat forming. Fixes small tangles before they become mats.
Pin brush β rounded pins on a cushioned base. For long, silky coats (Yorkie, Maltese) and finishing coat work after a mat is out.
For removing established mats
Dematting rake / dematting comb β curved blades that cut through tangled hair in one direction while leaving the healthy hair alone. The specific tool for breaking up a mat without pulling. Use short, controlled strokes.
Undercoat rake β long widely-spaced teeth that reach the dead undercoat without hitting the topcoat. Essential for double-coat breeds; the mat-prevention tool for Goldens, Collies, Huskies.
Mat splitter β a hooked blade that cuts a mat into smaller sections so you can work on each one separately. Faster than fingers for medium-sized mats.
Clippers β the right tool when the mat is flat against the skin and nothing else will work safely. A #10 blade carefully slid under the mat removes it in seconds without pulling the skin. Never use scissors to cut out a mat near the skin β the number of dogs cut by well-meaning owners doing this is enormous.
For the technique to work
Detangling spray or diluted conditioner β slightly dampens the hair, reduces friction between fibers, lets the comb glide through. Non-negotiable for established mats. Never try to break up a dry mat.
Treats and a lick mat β the mental health infrastructure. A dog that associates grooming with reward tolerates far more work than one that's being wrestled.
4. How to remove a mat from dog hair without cutting it: step by step
- Set up the environment. Quiet room, non-slip surface, treats within reach, a lick mat loaded with peanut butter or wet food stuck at your dog's nose height. Have all your tools laid out before you start.
- Examine the whole coat first. Run your fingers through to find every mat, especially the hidden ones: behind the ears, under the collar, in the armpits, between the toes, around the private area, and at the base of the tail. Groomers always check these five areas first because that's where mats hide.
- Separate matted hair from healthy hair. Hold the base of the mat with your fingers so you're not pulling on the roots when you work on it. This single move eliminates most of the pain of dematting.
- Mist the mat with detangling spray or diluted conditioner (1 part conditioner, 4 parts water). Let it soak in for a minute. The hair softens and the mat loosens.
- Work on the tip of the mat, not the base. Using a dematting comb, a mat splitter, or your fingers, pick at the end of the mat (away from the skin). Pull apart what you can with your fingers first β this is slower but less painful.
- Short strokes with the dematting rake, in the direction of hair growth, with firm but light pressure. Avoid long aggressive sweeps β they pull.
- Progress from coarser teeth to finer teeth. Start with widely-spaced teeth to break up the bulk, finish with finer teeth to blend the detangled area back into the healthy coat.
- Check for skin contact. As the mat loosens, keep your free hand underneath so you feel if the tool is approaching the skin. The moment you feel the base of the hair come free, stop combing that spot.
- Finish with a slicker brush and comb-through. The slicker fluffs out the loosened hair; the comb confirms there are no small tangles left.
- End on a good note. Treats, praise, and a short break before moving to the next mat. If your dog is getting stressed, stop and continue tomorrow β nothing is urgent except a mat with inflamed skin underneath.
Time estimate: A small mat with proper technique takes 2-5 minutes. A severe neglected mat can take 20-30 minutes. If a single mat is taking more than 15 minutes and the hair isn't releasing, stop and shave it out. Dogs lose patience, and so do owners β and that's when accidents happen.
5. How to safely shave out a mat
Sometimes the mat has gone too far β flat against the skin, with no space to slide a comb under it. The humane move is to shave it out. Here's how:
- Use an electric clipper with a short blade β a #10 is standard for this job.
- Slide the blade under the mat (between the skin and the mat), with the blade teeth parallel to the skin, never angled into it.
- Move slowly. The clipper cuts the hair that attaches the mat to the skin; the mat falls away in one piece.
- Check the skin underneath. If it's raw, inflamed, or has an open sore, apply a vet-approved skin spray (chlorhexidine-based is standard) and give the area 24-48 hours before any further grooming.
- Trim or thin the surrounding hair to blend the shaved patch so it isn't a visible hole.
Never use scissors to cut a mat close to the skin. You cannot see where the skin stops and the mat starts, and the number one home grooming injury is a scissor cut from this exact move.
6. Why some dogs mat constantly β and how to stop it at the root
If you brush your dog weekly and still find new mats every seven days, the problem isn't your grooming routine. It's the coat itself.
Luna, our bichon, had a six-month stretch where she matted faster than I could brush. She had small, tight knots forming on her legs within three days of a full groom. Her coat looked dull. She had patches of dandruff on her back and above her tail. I was convinced I was failing as a groomer. The real issue turned out to be internal.
Signs the issue is internal, not external
- Mats reappear within days of a full de-matting session
- Coat feels dry, brittle, or "fuzzy" rather than smooth
- Persistent dandruff or flaking
- More shedding than normal for the breed and season
- Dull, lifeless appearance to the hair
- Possibly concurrent itching, licking, or ear issues
These are all signs of poor coat health, and coat health reflects skin health, which reflects gut health. The gut-skin axis is well established in veterinary dermatology β the microbiome in the gut regulates systemic inflammation, which directly affects the skin barrier and the quality of the coat growing out of it. A dog with gut dysbiosis, hidden food sensitivities, or compromised intestinal permeability produces a coat that mats more easily and recovers less well.
What actually helps at the root
Omega-3 fatty acids (EPA and DHA from fish oil) β the number one dietary input for coat quality. Dose by body weight; look for a product that lists mg of EPA and DHA, not just "fish oil."
Zinc β a trace mineral critical for skin barrier function. Many commercial diets are borderline on zinc, especially in large breeds and in dogs on grain-free formulations.
Bovine colostrum β rich in immunoglobulins (IgG) and growth factors that support the gut barrier and modulate immune responses. The gut-skin axis works both ways: a healthier gut lining means less systemic inflammation, which means healthier skin and coat. Our RUBOLD Pure Colostrum Powder is the supplement I'd reach for first for a mat-prone, dull-coated dog.
Rule out food sensitivities. If dietary improvements don't resolve the issue in 8-12 weeks, consider an elimination diet with a novel protein and limited ingredients. Many "mat-prone, dull-coat" dogs are quietly reacting to chicken, beef, or grains in their food.
Luna's coat came back within 3 months of adding colostrum, omega-3, and switching her to a lower-inflammation diet. The mats didn't disappear overnight, but by month three she was back to a once-a-week brush routine with no new mats forming. That's the pattern. The outside work matters, but the inside work is what makes the outside work sustainable.
7. Prevention: a routine that actually prevents mats
The best dematting technique is not needing it in the first place. Build these into your week:
- Brush before every bath. Any tangle you leave becomes a mat the moment water hits it.
- Full comb-through weekly with a metal greyhound comb β not just the slicker. The slicker lifts the top layer, the comb finds what the slicker missed.
- Daily brushing for high-mat breeds (Poodle, Bichon, Yorkie in long coat, Doodle crosses). Three minutes a day beats forty-five minutes a week.
- Dry thoroughly after every bath or swim. A high-velocity dryer is the biggest home-grooming upgrade you can make if you own a mat-prone dog.
- Spot-check the hidden areas twice a week β behind the ears, armpits, between toes, base of tail. These areas mat first.
- Address the inside. Omega-3, colostrum, zinc, a diet that works for your dog's gut. The coat you brush is the coat your dog grew, and your dog grew it from what you fed and how well their system is working.
A dog on a strong routine from the outside and the inside is a dog you can keep in a long or curly coat without constant salon trips. A dog with no inside support, no matter how skilled your brushwork, will mat.
8. When to call a professional groomer or vet
Call a groomer when:
- Severe matting covers most of the coat (a "pelt" where the mats have fused into a continuous mass)
- You're not confident with clippers
- The dog is too stressed or reactive for home dematting
- You've been working on a mat for 20+ minutes with no progress
Call a vet when:
- The skin under the mats is red, raw, bleeding, oozing, or has open sores
- Your dog yelps or snaps when touched (pain is a vet call, not a groomer call)
- You see sudden skin thickening, severe hair loss, or circular bald patches
- There's a persistent bad smell under the matted areas
- The dematting reveals something else β a growth, a wound, parasites
A severely pelted dog usually needs the groomer and the vet. Groomer shaves the pelt down to the skin; vet treats the inflammation, infections, or lesions underneath.
Frequently asked questions
Does dematting hurt dogs?
Done correctly, no. Done poorly, yes β pulling on the base of a mat is painful because the hair is attached to live follicles. The painless technique holds the hair at the skin and works only on the free end of the mat, so the pulling force never reaches the roots.
How do I get matted hair off a dog without cutting it?
Mist the mat with detangling spray, hold the base of the mat with your fingers, and work the tip of the mat open with a dematting comb or your fingers. Progress from coarse to fine teeth. Short, controlled strokes in the direction of hair growth. If the mat won't release in a few minutes, shaving is safer than forcing it.
How do I stop my dog's hair from matting?
Brush frequently enough for the coat type (weekly for medium coats, 2-3x per week for long coats, daily for curly coats), always dry thoroughly after getting wet, keep the hidden mat-zones (behind ears, armpits, between toes) in your weekly check, and address coat quality from the inside with omega-3, colostrum, and the right diet. Dogs with chronically dull or dry coats mat regardless of brushing frequency.
Can you use conditioner on a dog?
Yes β a dog-formulated conditioner reduces friction between hair fibers, making the coat less prone to tangling and easier to brush. For dematting, a leave-in or spray-on detangling conditioner (or a 1:4 dilution of regular conditioner) is one of the most helpful tools you have. Don't use human conditioner, which has the wrong pH for dog skin.
How often should I brush my dog?
Short coats: weekly. Medium coats: 2-3 times weekly. Long or curly coats: daily. Double coats during shedding season: daily. The brushing frequency is set by the coat, not by preference β any less and mats will form between sessions.
My dog doesn't tolerate brushing. What should I do?
Build the habit in tiny increments. Start with 60-second sessions once a day, treats throughout, and don't aim to accomplish much β the goal is just the dog letting you handle the brush. Add 30 seconds every few days. A lick mat with peanut butter at nose height is a game-changer. Within 2-3 weeks most dogs tolerate a full session, even those with past bad experiences.
How do you untangle severely matted hair on a dog?
Work slowly. Start with a dematting comb or mat splitter on the outer edge of the mat, loosening it progressively from the tip inward. Use plenty of detangling spray. If the mat has become a solid pelt against the skin, shaving it out is kinder than hours of pulling. For an extreme case, a groomer who specializes in dematting can do in 90 minutes what would take you an entire afternoon.
Why does my dog keep getting matted even though I brush regularly?
Three possibilities: (1) you're brushing only the top of the coat and missing the undercoat where mats form; (2) you're not getting the hidden mat zones (behind ears, armpits, between toes, under tail); or (3) your dog's coat quality is poor β brittle, dry, dandruff-prone β which is almost always a signal of underlying skin or gut health issues. Address the inside with omega-3 fatty acids, a quality colostrum supplement, zinc, and if needed an elimination diet.
Is it OK to cut mats out with scissors?
Generally no β and never near the skin. Dog skin is thinner than most owners realize, and the mat is pressed against it. The number one home grooming injury is a scissor cut from someone trying to cut out a mat. Use clippers with a #10 blade slid parallel to the skin, or have a groomer do it.
How do I know if the mats are hurting my dog's skin?
Lift the hair gently and look at the skin underneath. Healthy skin is pale pink or matches the dog's natural pigmentation and is smooth. Problem signs: redness, heat, bumps, scabs, flaking, moisture, or your dog flinching when you touch the area. If any of these are present, don't try to demat yourself β shave it out and see a vet.
Does my dog's diet affect how much they mat?
Yes, more than most owners realize. Coat quality is a downstream outcome of nutrition and gut health. Dogs on low-quality diets, dogs with hidden food sensitivities, and dogs with gut inflammation produce hair that mats more easily and sheds less cleanly. Adding omega-3 fatty acids, bovine colostrum, and zinc improves coat quality in 8-12 weeks for most dogs β enough time for a full coat growth cycle. Our RUBOLD Pure Colostrum Powder is the first supplement I recommend for a mat-prone, dull-coated dog.
Can I bathe a matted dog?
No β never bathe a matted dog before removing the mats. Water tightens tangles and creates concrete-hard knots that are far harder to remove. Always demat first, bathe second.
How often should severely mat-prone breeds (poodles, bichons, doodles) be professionally groomed?
Every 4-6 weeks for a full groom (clip, bath, dry, de-matting check), with daily brushing between appointments. If you're doing the brushing at home correctly, the professional visit is maintenance, not emergency removal. If you're skipping daily brushing, the salon trip turns into an expensive dematting session every time β or in the worst case, the whole coat gets shaved down.