That Bald Patch Might Be Ringworm. Decide What Your Salon Does Before the Cat Is on the Table.

Picture a Tuesday at 2:30. The cat on your table has a small patch on her flank where the hair is thin and broken. The skin underneath looks a little darker. Her owner says it isn't itchy and has "been there a while." You have a full afternoon, a client who drove forty minutes, and a decision you have about eleven seconds to make.

Most groomers make that decision the same way: they look at it, hope it's nothing, and keep going. Then they spend the next week wondering what they just put through the dryer, the table, and the bath.

I run a grooming salon. I don't have cats at home, so I'm not going to pretend I've treated this at my own kitchen table. What I can tell you is that every time I talk to a pro about what they do for a suspicious patch, the honest answer is "I figure it out when it happens." That's a bad time to figure anything out.

What Most Groomers Get Wrong About Suspected Ringworm

The mistake isn't ignorance. Most of you know ringworm exists. The mistake is treating it as a diagnosis problem when it's a policy problem.

You can't diagnose it, and you shouldn't try. Groomer to Groomer's guidance on this lists hair loss, broken hairs, and darkening of the skin as common signs, and notes that owners often say the spot isn't itchy. It also says a ring of scale and hair loss is usually not ringworm, and more often a bacterial infection that isn't contagious (Groomer to Groomer). So the thing you're looking at could be ringworm or it could be nothing, and you can't tell which from across a table.

When you're guessing, the decision rule has to be made in advance. A groomer deciding on the spot, with a paying client watching, will almost always decide in favor of the appointment.

The second mistake is thinking the risk ends with the cat. The CDC lists shared objects like towels and bedsheets and shared surfaces among the ways ringworm spreads (CDC). A grooming salon is a room full of shared objects: tables, clippers, brushes, towels, dryers, tubs. And it's a room where one person handles a dozen animals in a day.

Why the Dog-Salon Habits Don't Cover Cats

If you came to cats from dogs, or you share a building with a dog operation, you already have a wipe-down routine. It's probably decent. It was built for a different job.

A cat appointment is a different exposure pattern: long, close-range, hands-on work, often with your forearms and face near the coat, and a lot of loose hair going places. The Merck Veterinary Manual notes that broken hairs with associated spores are important sources for spread of ringworm in cats (Merck Veterinary Manual). Hair is exactly what a groomer produces.

There's also the people side. The same page says the fungi spread to people primarily by contact with infected cats, though contact doesn't always result in infection. You are the person with the most contact, several cats a day.

And the cat-only economics make a shutdown expensive. A groomer who is the whole business can't absorb a week of "retire the tools and re-bleach everything." That's the real reason to write the policy now: the cost of a bad week lands on one person.

A Framework That Actually Works

1. Separate noticing from diagnosing. Your job is to notice a suspicious patch, document it, and refer. The diagnosis belongs to a vet. The ASPCA's shelter protocol, for instance, relies on a Wood's lamp exam and a DTM fungal culture rather than a visual guess (ASPCA Pro). That's a shelter protocol, not a salon rule, but it makes the point that eyeballing isn't the standard.

2. Make the rule at intake, in writing. Put it in your booking terms: you may decline to groom or stop a groom if you see a skin condition you're not comfortable working around, and you may ask for a vet letter. Groomer to Groomer recommends a veterinarian's letter stating it is safe to groom a pet with a known skin condition. A rule that was posted ahead of time sounds like a business. A rule you invent at 2:30 sounds like an accusation. If you've already built a refusal policy for matted cats, this is the same muscle.

3. Know your stop point. Decide in advance what you do mid-groom if you find a patch you didn't see at check-in: stop, put the cat back in the carrier, tell the owner plainly, and charge according to your posted policy for the work done. The stop point is easy to set now and nearly impossible to set with a clipper in your hand.

4. Have a clean-down order. Groomer to Groomer describes soaking surfaces and grooming tools for five minutes in a 1:10 bleach solution (0.5%), wiping down items that can't be soaked, and doing the work before closing to limit staff exposure to fumes. The CDC says to never mix cleaning products. The point isn't to memorize one product. It's to have a written order (hair out first, then tools, then surfaces, then fabrics) so you don't improvise it while stressed.

5. Protect yourself first. The CDC recommends gloves and long sleeves when handling a pet with ringworm, and washing your hands with soap and running water after contact (CDC). If you've already thought about what repetitive handling does to your body, the ergonomics piece is the same logic: the person doing the work is the first piece of equipment to protect.

What You Can Do This Week

• Write the one-sentence rule. "If I find a skin condition I'm not comfortable grooming around, I'll stop, tell you, and ask for a vet's okay before rebooking." Paste it into your booking terms and confirmation message.
• Add one line to your intake form: "Any skin patches, hair loss, or a current skin treatment?" Owners will tell you things at intake that they'll never volunteer at pickup.
• Stock a small response kit in one labeled bin: gloves, a long-sleeved smock, a spare carrier, sealable bags for towels, and your written clean-down order taped inside the lid.
• Run a ten-minute drill. Walk through your clean-down order once on an ordinary Tuesday, with a timer. If it takes ninety minutes, you've learned something you'd rather learn now.

Want the Full System?

This post gives you the shape of the policy. The full version, with the intake and refusal scripts, the item-by-item clean-down table, the mid-groom stop procedure, and a worked composite of what a suspected-case week costs a solo shop, is in The Cat Groomer's Salon Sanitation Playbook, part of Groomer Edge.

If you haven't set your insurance up, read what you actually need first, and ask your carrier what they expect you to do about contagious skin conditions. If you want a vet to send the cats to, the vet referral piece is where that relationship starts.

The best sanitation protocol is the one you wrote on a quiet Tuesday, not the one you invented with a clipper in your hand.