Will Your Dog’s Scratch Leave a Lasting Mark?


Dogs frequently play rough with each other, their owners, and even furniture. As a result, it’s common for dogs to accidentally scratch people with their paws or nails. While most dog scratches are minor and heal quickly, they can sometimes break the skin and cause scarring.

According to research, dog scratches account for a significant proportion of bite and scratch injuries. One study estimated the annual rate of bite and scratch injuries from dogs and cats to be 325 per 100,000 people (Matter, 1998).

The severity of a dog scratch and how much scarring occurs depends on factors like the depth of the wound, location on the body, and how it’s cared for. While not all dog scratches lead to scars, deeper ones that break multiple layers of skin are more likely to leave a permanent mark.

This article provides an overview of what causes scars from dog scratches, techniques to minimize scarring, and when to seek medical care. It also covers differences between breeds, prevention methods, and scar removal options.

What Causes Scars

Scars form as part of the natural healing process after the skin is injured. Skin repairs itself by growing new collagen fibers to mend the wound. According to Hopkins Medicine, scars occur when there is damage to the deeper layer of skin called the dermis. In minor injuries, only the top layer of skin (epidermis) is affected so scars don’t usually form.

When the skin is wounded all the way to the dermis, the body triggers inflammation as the first stage of healing. Specialized cells called fibroblasts in the deeper skin produce collagen to mend the damaged area. Collagen provides structure and strength for healing wounds. As the wound heals, blood vessels form to supply nutrients and the area contracts. Over time, new skin will completely cover the wound. A scar forms gradually as the collagen fibers realign in a pattern different from normal skin. The healing and scar formation process can last several months (source).

microscope view of deep dog scratch wound showing damaged skin layers

Deeper cuts, burns, and other trauma cause more damage and inflammation, leading to increased scar formation. The size, depth, and location of the skin injury also affect how much scar tissue develops (source).

Factors That Affect Scarring

Several factors affect how much scarring occurs from a dog scratch, including:

Depth of wound – Deeper wounds that damage the lower layers of skin are more likely to scar than superficial scratches [1]. A deeper scratch reaches the dermis, which contains collagen-producing fibroblasts that can overproduce collagen as part of the healing process, leading to a raised, firm scar.

Location on body – Areas with thicker skin and more collagen like the back and shoulders tend to scar more than thinner-skinned places like the face [2]. The movement and tension on certain body parts also influences scarring.

Dog’s nails – Sharp, rough nails can create jagged cuts that are harder to heal smoothly. Nails harboring dirt and bacteria introduce infection risk, which can worsen scarring.

dog with sharp rough nails standing on hardwood floor

Repeated scratching – Frequent repeated injury to the same area causes buildup of scar tissue. The chronic inflammation and skin cell regeneration amplifies the body’s fibrotic response [3].

Scar Prevention

There are several things you can do to help prevent scarring after a dog scratch:

Care for the wound properly. Keep the wound clean by gently washing with mild soap and water once a day. Be sure to pat dry and apply an ointment like petroleum jelly or antibiotic ointment to keep it moist. Cover with a bandage if needed to protect it. This helps prevent infection and allows new skin cells to grow across the wound, minimizing scarring (source).

Consider medical treatments. Your doctor may prescribe topical treatments like silicone gel sheeting or injections of steroids or anti-scarring enzymes to help reduce inflammation and scarring. Laser treatments can also help improve the appearance of scars by resurfacing the skin (source). Use these options as recommended by your physician.

person applying silicone scar treatment gel to dog scratch

The key is to care for the wound properly right away. Keeping it clean, moisturized, and protected will give it the best chance to heal with minimal scarring.

Scar Removal Treatments

There are several options for removing or reducing the appearance of scars from dog scratches. Some natural remedies, over-the-counter treatments, and professional procedures may help minimize scarring.

Natural remedies like applying aloe vera gel, coconut oil, or vitamin E oil to the wound may help soothe inflammation and promote healing. According to skinlaseronline.com, keeping the skin hydrated with natural oils can sometimes reduce the appearance of small scars.

Over-the-counter scar creams containing ingredients like hydroquinone, kojic acid, licorice extract, and glycolic acid can also help fade scars over time by exfoliating the skin and blocking melanin production. Silicone gel sheets may help flatten and smooth raised scars when worn regularly.

For more significant scarring, professional procedures like laser treatments, dermabrasion, chemical peels, corticosteroid injections, or even surgical scar revision may be options. Consulting a dermatologist can help determine the best scar removal treatment for an individual based on the severity and type of scarring.

When to See a Doctor

If you experience signs of infection after a dog scratch, it’s important to seek medical attention right away. According to Healthline, some signs of infection to watch for include redness, swelling, pus, warmth around the scratch, red streaks spreading from the wound, fever, and swollen lymph nodes near the scratch. PetMD also recommends seeing a doctor if you experience increased pain, redness, swelling, pus, foul odor, or fever after a dog scratch.

Marshfield Clinic advises not to wait to seek medical care if you notice any infection symptoms after a dog scratch. An infected wound requires professional cleaning and antibiotics. Left untreated, the infection can spread to the bloodstream and become life-threatening. It’s better to be safe and have a doctor examine any concerning symptoms after a dog scratch, even if it ends up being nothing serious.

Scarring in Puppies

Puppies have thinner skin than adult dogs, so their scratches tend to heal faster but are also more prone to scarring. According to veterinarians, a puppy’s skin continues developing until they are around 1 year old.

The reason puppies scar more easily is because their skin has less collagen. Collagen provides structure in the skin and helps it bounce back after an injury. With less collagen, wounds in puppy skin gape open more and take longer to seal closed. This increases the risk of scarring.

vet examining and treating scratch on puppy's skin

Additionally, puppy skin has lower levels of certain proteins like fibronectin and vitronectin that are involved in wound healing. Their skin also has fewer hair follicles and sebaceous glands compared to adult dogs. All these factors allow wounds to penetrate deeper in puppy skin before clotting and healing, leading to worse scarring.

On the bright side, puppies have a high cell turnover rate as they are growing quickly. Their skin regenerates and renews itself faster. This gives them an advantage in healing capabilities over adult dogs. With proper treatment, most light scratches in puppies will heal without permanent scarring if given enough time.

According to veterinarians, the first year of a puppy’s life is critical for avoiding scars from scratches. Care should be taken to allow scratches to heal completely before the puppy resumes playing or activity that could reopen wounds. Ointments that reduce scarring can also help minimize permanent marks.

Breed Differences

Certain dog breeds are more prone to causing scars from scratches than others due to factors like coat type, nail thickness, and temperament. According to veterinarians, breeds with thick double-coats like Siberian Huskies, Alaskan Malamutes, and Chow Chows tend to cause more scarring (1). Their fur is dense and coarse, and their nails are thick and grow quickly. Herding breeds like Border Collies and Australian Shepherds also often cause noticeable scarring when they scratch. Their nails are sharp for herding purposes. Terrier breeds like Jack Russell Terriers have a high prey drive and may instinctively scratch when excited. Brachycephalic breeds like Boxers and Pugs tend to have long curly nails that can catch skin.

On the other hand, breeds with smooth coats like Dobermans, Whippets, and Greyhounds tend to cause less scarring from scratches. Their short fur and nails make it less likely to cause deep scratches. Non-sporting breeds like Bichon Frises and Poodles, along with companion breeds like Cavalier King Charles Spaniels also rarely cause noticeable scars due to their calm personalities and coat types (1).

Preventing Dog Scratches

Preventing dog scratches on floors begins with keeping your dog’s nails trimmed. Long nails are more likely to catch on the floor and cause scratches. Aim to trim your dog’s nails every 2-4 weeks, depending on the growth rate of their nails. Use clippers designed for dogs and take care not to trim too short, which can cause pain and bleeding. Ask your vet or groomer to show you how to properly trim your dog’s nails if you are unsure.

It’s also important to discourage rough play indoors. Dogs may scratch floors when playing roughly, chasing toys, or having zoomies. Provide plenty of appropriate chew toys and interactive play to meet their needs. Consider taking more rambunctious play outside or to rooms with hardier flooring. You can also train your dog not to run or play too wildly indoors. Reward calm behavior in the house.

Finally, keep your dog’s paws clean and trimmed. Dirt and debris on paw pads can exacerbate scratching. Brush and wipe paws when coming inside. Check between paw pads and trim fur to minimize buildup. Keeping nails trimmed will also help minimize scratches.


In summary, minor dog scratches will typically heal on their own without leaving any scarring. However, deeper wounds that damage multiple layers of skin have a higher chance of scarring as they heal. Factors like wound size, infection, and genetics can also influence scarring. Keeping your dog’s nails trimmed, using bitter apple spray, and promptly treating any scratches can help prevent scars from forming. Most scars will gradually fade over time, but see your vet if any scarring concerns you. While scarring is usually inevitable with more severe bites and lacerations, minor scratches on healthy skin tend to heal well without any lasting marks. Just be sure to care for your dog’s wound properly until the healing process is complete.

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