Why Dog Fur Mats & How to Prevent It

What Causes Dog Fur to Mat?

Dog fur mats are solid clumps of hair that form when loose fur tangles and becomes tightly packed. They commonly appear behind the ears, in armpits, around the anus, on the backs of thighs, in the groin, and between the toes. Mats are often a sign of neglected grooming or using the wrong tools. Dogs with softer or longer coats are more prone to matting. Health issues like allergies can increase oil production, irritating the skin and making fur more likely to tangle. Hormonal changes—such as after a female dog goes into heat or gives birth—can also cause sudden shedding and matting.

How to Prevent Mats Before They Happen

The best way to handle mats is to prevent them entirely. Daily brushing is essential, especially for long-haired or double-coated breeds. Brushing removes dead hair, stimulates blood circulation, and helps distribute natural oils, keeping the coat healthy and reducing shedding. It also allows you to spot early signs of skin issues, parasites, or bumps before they worsen. Even short-haired dogs benefit from regular brushing to catch problems early and maintain a strong bond with their owner.

Safe Ways to Remove Mats at Home

To safely remove mats, start by preparing the coat. For soft mats, open a hole in the center using the tail of a rat-tail comb. Then, use just the last tooth of a comb to gently detangle from the outside edge toward the skin. Only after opening the mat should you use a slicker brush to work on the edges. Never skip the comb step—using a slicker brush too early can tighten the mat and damage the hair.

For harder mats, use scissors or electric clippers with caution. Slide a comb under the mat to act as a barrier between the blade and the skin. Cut in narrow strips, keeping the scissors perpendicular to the comb. Never slide scissors directly under the mat—this risks cutting the dog’s skin. If the dog resists, consider using electric clippers or a mustache trimmer to shave out the mat.

Use Tools and Products to Make De-Matting Easier

Certain products can help loosen mats and reduce discomfort. On long-haired dogs, a light leave-in conditioner with cosmetic silicone makes hair more manageable. For medium double coats, sprinkle a small amount of cornstarch into the mat to help separate the hairs. Nonstick cooking spray can also ease out tangled plant material without cutting. After removal, apply witch hazel or hydrocortisone cream to soothe irritated skin from clippers. Always use tools with care and protect the skin by holding the mat at its base near the skin.

Why Early Action Matters

A matted dog is uncomfortable and may flinch or snap when touched. Mats in sensitive areas like armpits and groin can cause pain, bruising, or raw sores. If left untreated, matting can lead to serious health issues. Even if you’re determined to save the coat, de-matting can take hours and should be done in short sessions over several days to avoid stressing the dog. Early grooming not only prevents pain but also strengthens trust and respect between you and your dog.