Why does my dog have multiple small bald patches at once?

Read time: 3 minutes

Overview

Multiple small bald patches can happen for several reasons, and ringworm is one of them, but it’s not the only possibility. Other common causes include parasites, allergies, rubbing, and minor skin irritation, so it’s worth checking the skin closely rather than assuming one cause straight away.

Things To Check

1. Look at the edges of each patch. Ring-shaped hair loss, scaling, or a slightly crusty border can be a clue, but it’s not proof.

2. Check for itching, licking, chewing, or rubbing, especially after walks, grooming, or sleep.

3. Part the coat around each patch and look for redness, flakes, scabs, broken hairs, or discharge.

4. Check whether any other pets or people in the home have itchy or scaly patches, as some skin problems can spread.

5. Think about any recent changes, such as new bedding, shampoo, grooming tools, treats, food, or walking routes.

6. Look for signs of fleas, mites, or other parasites, especially around the rump, belly, ears, and neck.

7. Note whether the bald patches are new, spreading, or staying in the same places.

Common Causes

Ringworm is a common reason for patchy hair loss and can cause one or more small bald areas, often with scaling or broken hairs.

Parasites such as fleas or mites can also lead to local hair loss, especially if your dog is scratching or chewing at the skin.

Allergies or skin sensitivity may cause repeated rubbing or licking, which can leave small bald patches over time.

Less often, skin infections, friction from harnesses or collars, or other coat and skin conditions can create similar patches.

What To Do

Keep a simple note of where the patches are, how many there are, and whether they’re changing. A few clear photos taken over several days can be helpful.

Avoid using human creams or washing the area repeatedly, as that can sometimes irritate the skin further.

Wash bedding, brushes, and anything else that touches the coat regularly, and keep grooming tools separate if you’re concerned about something that could spread.

Try to stop your dog from licking or scratching the patches as much as possible, and keep an eye on any other pets in the home for skin changes.

If the bald patches are spreading, become sore, or don’t improve, it’s sensible to ask your vet for advice so the cause can be checked properly.

When To Contact A Vet

Speak to your vet if the patches are spreading quickly, the skin looks very red or sore, your dog seems uncomfortable, or other pets or people in the home are developing similar skin changes. It’s also a good idea to get advice if the hair loss keeps coming back or you’re not sure whether ringworm or something else is involved.

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