Cat Matted Fur: Causes, Safe Removal and When to See a Vet
Updated October 27, 2026
This guide is for cat owners who have found tangled clumps in their cat's fur. It covers why mats form, why they hurt, what can be going on underneath, a step-by-step method for small mats, why scissors are off the table, and a brushing routine that stops mats from coming back. It applies to long-haired and short-haired cats.
The short answer: Small, loose mats can usually be teased apart with your fingers and a comb or slicker brush, working from the tip of the hair toward the skin. Never cut a mat out with scissors, because it sits right against the skin and it is easy to cut your cat. Mats that are tight, large, widespread or in sensitive areas should be shaved by a groomer or your vet, sometimes with sedation. If the mats are on your cat's back or rear end and keep returning, book a vet check, because a cat that stops grooming there often has pain or illness.
How we wrote this: the advice comes from the veterinary and animal welfare sources linked in the text. Product mentions use brand specs and named, linked reviews. We have not tested these products ourselves, and this page has no affiliate links.
Why cat fur mats
A mat is loose hair that has tangled into a tight, dense clump instead of falling out of the coat. PetMD notes that matting is most common in long or thick coats but can happen to any pet that is not groomed regularly (PetMD). The usual causes are:
- Long or fine hair. VCA Animal Hospitals says cats with long, silky or curly coats need daily brushing to keep tangles from forming, especially around the ears, in the armpits and along the back of the legs.
- Shedding. Indoor long-haired cats shed all year, according to the ASPCA. Dead hair that is not brushed out gets caught in the live coat and knots.
- Age. International Cat Care explains that older, stiffer cats often struggle to keep up their grooming, and you may notice matting over the lower spine and hindquarters (International Cat Care). PetMD adds that aging skin can make more oil, which encourages matting even in short-haired cats, often at the base of the tail and up the back (PetMD).
- Extra weight. An overweight cat simply cannot reach its back and rear end, so hair and skin flakes build up there (PetMD).
- Friction spots. Mats start where the coat rubs: under the legs, the chest, the back end and around the collar (VCA).
Matted fur on a cat's back: a sign to see your vet
A cat that suddenly lets its back, hips or tail base go matted is often telling you something. Cornell Feline Health Center notes that a cat with arthritis may be unable to groom itself thoroughly because of joint pain, and that arthritis is seen more often in obese cats (Cornell Feline Health Center). Joint pain is common: the American Association of Feline Practitioners cites estimates that 60 percent of all cats have at least one painful arthritic joint or spinal segment, and it lists reduced grooming as a sign of painful mouth disease too (AAFP).
International Cat Care says decreased grooming may point to chronic pain from arthritis or dental disease (International Cat Care), and PetMD lists kidney disease, thyroid disorders and diabetes as conditions that can reduce grooming (PetMD). VCA notes that an arthritic or overweight cat that cannot groom well needs your help to remove loose hair (VCA).
If mats keep appearing on your cat's back or rear end, or your cat has stopped grooming, lost weight, is drinking more, drooling or eating less, see your vet. Removing the mats treats the symptom, not the cause.
Why mats hurt and what happens to the skin underneath
As a mat grows it pulls on the hair and skin around it, so every time your cat moves, the mat tugs (PetMD). That is why many matted cats flinch or bite when you touch the area.
Under the mat, moisture, dirt and debris get trapped against the skin, which can lead to irritation and infection (PetMD). The ASPCA warns that even mild mats can irritate the skin and progress to infected sores, that fleas and ticks can hide deep in a mat, and that in severe cases a mat can wrap around a leg tightly enough to cut off blood supply.
Matted fur and dandruff
Flakes trapped in and around mats are common in cats that cannot groom. PetMD links dandruff in cats to obesity and arthritis pain (both of which stop a cat from grooming), plus fleas, mites, allergies, diabetes and hyperthyroidism. It advises a vet visit if dandruff lasts more than a couple of weeks or comes with scabs, itching, vomiting, lethargy, poor appetite or behavior changes (PetMD). Red, wet, smelly or oozing skin under a mat also means see your vet.
How to remove small mats at home
This works for small, loose mats you can slide a comb under, in a cat that tolerates handling. Have a slicker brush, a metal comb and some treats ready. Work on a dry coat: VCA advises brushing tangles out before any bath, because tangles can become impossible to remove once wet (VCA).
- Pick a calm moment. Choose a quiet time when your cat is relaxed, and offer treats and gentle praise as you go (PetMD).
- Feel the mat first. Check whether you can get a finger or comb between the mat and the skin. If it is welded to the skin, stop here and book a groomer or vet.
- Loosen it with your fingers. Tease the strands apart gently with your fingertips, being patient (International Cat Care). Split a larger mat into smaller sections.
- Hold the hair at the base. Pinch the hair between the mat and the skin so the comb pulls against your fingers, not your cat's skin.
- Comb or brush from the outside in. Use a wide-tooth comb or slicker brush with short, gentle strokes, starting at the outer edge of the mat and working toward the skin (PetMD).
- Keep sessions short. Stop after a few minutes or at the first sign of stress (tail lashing, skin twitching, ears back) and finish another day.
- Check with the comb. When the comb passes through to the skin without catching, the mat is gone. Check the skin for redness or sores.
Do not cut mats with scissors
Mats sit very close to the skin, and once fur is matted it is extremely hard to see where the hair ends and the skin begins (International Cat Care). VCA says to use only clippers to remove mats, never scissors, and to avoid scissors so you do not cut your cat's delicate skin (VCA). Older cats are at even higher risk: PetMD notes their skin is especially delicate and close trimming can cause cuts or skin sloughing (PetMD). Mat splitters carry the same risk of slicing the skin under the mat (PetMD).
If you nick your cat's skin while dealing with a mat, or find a wound under one, see your vet.
Cat matted fur spray: does it help?
A detangling product can make hair more slippery so a small mat loosens with less pulling. PetMD recommends pet-specific detangling products rather than anything made for people (PetMD). For cats, choose one whose label says it is for cats, because whatever you spray on the coat is licked off and swallowed. A dog detangler is not a safe swap. A spray will not loosen a tight mat at the skin, and it does not replace a groomer for heavy matting. Ask your vet before using a new care product if your pet has a health condition, is pregnant or nursing, or takes medication.
When a groomer or vet should shave the mats
Hand the job over if a mat is tight against the skin, covers a large area, will not loosen, is near the eyes, ears, genitals or anus, or the skin shows redness, swelling, odor, moisture or discharge (PetMD). The ASPCA also advises a professional if your cat fights grooming and someone could get hurt (ASPCA).
Severe mats are usually shaved off by the veterinary team, often under sedation or general anesthetic (International Cat Care). VCA notes your vet can sedate your cat for pain-free mat removal (VCA). A vet can also check the skin underneath and look for the reason your cat stopped grooming. After a full shave, VCA suggests leaving at least one inch of hair where possible to protect the skin from sun (VCA).
How to prevent mats: a brushing schedule
International Cat Care puts it simply: with daily grooming, a cat should not become matted (International Cat Care).
| Cat | How often | Focus on |
|---|---|---|
| Long-haired adult | Daily, or at least every few days | Armpits, belly, chest, back of the legs, behind the ears |
| Short-haired adult | At least once a week | Back and sides, more often in heavy shedding |
| Senior, arthritic or overweight cat | Daily, in short gentle sessions | Lower back, hips, tail base, back end |
The frequencies above follow International Cat Care and VCA. Cornell notes that older cats benefit from more hands-on help as their own grooming fades, especially long-haired cats that become uncomfortably matted (Cornell Feline Health Center). Brush with a slicker, then run a metal comb through to the skin to catch any tangle the brush missed. Brush gently: PetMD's groomers warn against hard or jerky strokes (PetMD). For the full routine, see our guide on how to groom a cat. Older cats may also need claw checks, since International Cat Care notes senior claws can overgrow into the pads; our guide on how to trim cat nails covers that.
Our picks
Safari by Coastal Cat Self-Cleaning Slicker Brush
A small slicker made for cats, with coated stainless steel pins, and the brand says it removes tangles and mats on both short and long hair. A push button retracts the pins so collected hair slides off in one go. Pair it with a metal comb on thick long coats, and press lightly on the belly and legs.
Mistakes to avoid
- Cutting mats with scissors or a seam ripper.
- Bathing a matted cat before the mats are out; VCA warns tangles can become impossible to remove after a bath. Our guide on how to bathe a cat covers when a bath makes sense.
- Pulling a mat at the root without holding the hair at the skin.
- Using dog or human detangler sprays on a cat.
- Treating repeat back matting as a coat problem only, without a vet check.
FAQ
What causes matted fur in cats?
Loose hair that is not brushed out tangles into clumps, especially in long coats and friction spots like the armpits and belly. Cats that cannot groom well because of age, arthritis, weight or illness mat more easily, often on the back and rear end.
Why is my cat's fur matted on the back?
Back and hip mats usually mean your cat cannot reach or bend to groom there. Arthritis, extra weight, dental pain and illness are common reasons, so see your vet.
How do I get mats out of my cat's fur without cutting them?
For small loose mats, tease the hair apart with your fingers, hold the hair at the base and work a comb or slicker from the outer edge toward the skin in short strokes. Tight or large mats need a groomer or vet with clippers.
Will matted cat fur fall out on its own?
No. PetMD notes matted fur will not go away on its own, so it needs brushing out or professional removal (PetMD).
Is it safe to shave a matted cat at home?
Only small, loose areas, and only with clippers, never scissors. Widespread or skin-tight mats are safer with a groomer or vet, who may sedate your cat.
Are matted fur and dandruff linked?
Often, because both appear when a cat stops grooming. If flakes last more than a couple of weeks or come with itching, scabs or other changes, see your vet.
More cat care: browse all our grooming guides.